Home / 766,408,938.53-1,057,644,761.07-413,984,932.68

Finding the Fourth Proportional to 766,408,938.53, 1,057,644,761.07 and 413,984,932.68

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Solution

The fourth proportional to 766,408,938.53, 1,057,644,761.07 and 413,984,932.68 is: 571,299,437.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,408,938.53 : 1,057,644,761.07 = 413,984,932.68 : x
  2. Step 2: Convert to fraction form
    766,408,938.53/1,057,644,761.07 = 413,984,932.68/x
  3. Step 3: Cross multiply
    766,408,938.53x = 1,057,644,761.07 × 413,984,932.68
  4. Step 4: Simplify right side
    766,408,938.53x = 437,848,995,210,918,656
  5. Step 5: Solve for x
    x = 437,848,995,210,918,656/766,408,938.53
  6. Step 6: Final answer
    x = 571,299,437.16

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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.