Home / 696,403,442.28-961,036,717.88-383,130,930.21

Finding the Fourth Proportional to 696,403,442.28, 961,036,717.88 and 383,130,930.21

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Solution

The fourth proportional to 696,403,442.28, 961,036,717.88 and 383,130,930.21 is: 528,720,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,403,442.28 : 961,036,717.88 = 383,130,930.21 : x
  2. Step 2: Convert to fraction form
    696,403,442.28/961,036,717.88 = 383,130,930.21/x
  3. Step 3: Cross multiply
    696,403,442.28x = 961,036,717.88 × 383,130,930.21
  4. Step 4: Simplify right side
    696,403,442.28x = 368,202,891,687,329,728
  5. Step 5: Solve for x
    x = 368,202,891,687,329,728/696,403,442.28
  6. Step 6: Final answer
    x = 528,720,665.83

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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.