Home / 1,398,745,955.17-1,930,259,424.22-763,666,427.17

Finding the Fourth Proportional to 1,398,745,955.17, 1,930,259,424.22 and 763,666,427.17

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Solution

The fourth proportional to 1,398,745,955.17, 1,930,259,424.22 and 763,666,427.17 is: 1,053,854,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,745,955.17 : 1,930,259,424.22 = 763,666,427.17 : x
  2. Step 2: Convert to fraction form
    1,398,745,955.17/1,930,259,424.22 = 763,666,427.17/x
  3. Step 3: Cross multiply
    1,398,745,955.17x = 1,930,259,424.22 × 763,666,427.17
  4. Step 4: Simplify right side
    1,398,745,955.17x = 1,474,074,318,005,308,672
  5. Step 5: Solve for x
    x = 1,474,074,318,005,308,672/1,398,745,955.17
  6. Step 6: Final answer
    x = 1,053,854,213.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.