Home / 1,145,087,998.70-1,717,631,998.05-283,444,990.70

Finding the Fourth Proportional to 1,145,087,998.70, 1,717,631,998.05 and 283,444,990.70

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Solution

The fourth proportional to 1,145,087,998.70, 1,717,631,998.05 and 283,444,990.70 is: 425,167,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,087,998.70 : 1,717,631,998.05 = 283,444,990.70 : x
  2. Step 2: Convert to fraction form
    1,145,087,998.70/1,717,631,998.05 = 283,444,990.70/x
  3. Step 3: Cross multiply
    1,145,087,998.70x = 1,717,631,998.05 × 283,444,990.70
  4. Step 4: Simplify right side
    1,145,087,998.70x = 486,854,185,713,304,640
  5. Step 5: Solve for x
    x = 486,854,185,713,304,640/1,145,087,998.70
  6. Step 6: Final answer
    x = 425,167,486.05

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Double scale
Find fourth proportional to 1,145,087,999.70, 1,717,631,999.55 and 283,444,991.70
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.