Home / 1,398,745,958.17-1,930,259,428.36-763,666,430.17

Finding the Fourth Proportional to 1,398,745,958.17, 1,930,259,428.36 and 763,666,430.17

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Solution

The fourth proportional to 1,398,745,958.17, 1,930,259,428.36 and 763,666,430.17 is: 1,053,854,217.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,745,958.17 : 1,930,259,428.36 = 763,666,430.17 : x
  2. Step 2: Convert to fraction form
    1,398,745,958.17/1,930,259,428.36 = 763,666,430.17/x
  3. Step 3: Cross multiply
    1,398,745,958.17x = 1,930,259,428.36 × 763,666,430.17
  4. Step 4: Simplify right side
    1,398,745,958.17x = 1,474,074,326,957,665,792
  5. Step 5: Solve for x
    x = 1,474,074,326,957,665,792/1,398,745,958.17
  6. Step 6: Final answer
    x = 1,053,854,217.31

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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.