Home / 1,145,087,996.70-1,717,631,995.05-283,444,988.70

Finding the Fourth Proportional to 1,145,087,996.70, 1,717,631,995.05 and 283,444,988.70

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Solution

The fourth proportional to 1,145,087,996.70, 1,717,631,995.05 and 283,444,988.70 is: 425,167,483.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,087,996.70 : 1,717,631,995.05 = 283,444,988.70 : x
  2. Step 2: Convert to fraction form
    1,145,087,996.70/1,717,631,995.05 = 283,444,988.70/x
  3. Step 3: Cross multiply
    1,145,087,996.70x = 1,717,631,995.05 × 283,444,988.70
  4. Step 4: Simplify right side
    1,145,087,996.70x = 486,854,181,427,705,664
  5. Step 5: Solve for x
    x = 486,854,181,427,705,664/1,145,087,996.70
  6. Step 6: Final answer
    x = 425,167,483.05

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Half scale
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Double scale
Find fourth proportional to 1,145,087,997.70, 1,717,631,996.55 and 283,444,989.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.