Home / 961,418,440-1,326,813,387.42-538,028,520.76

Finding the Fourth Proportional to 961,418,440, 1,326,813,387.42 and 538,028,520.76

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Solution

The fourth proportional to 961,418,440, 1,326,813,387.42 and 538,028,520.76 is: 742,510,663.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,418,440 : 1,326,813,387.42 = 538,028,520.76 : x
  2. Step 2: Convert to fraction form
    961,418,440/1,326,813,387.42 = 538,028,520.76/x
  3. Step 3: Cross multiply
    961,418,440x = 1,326,813,387.42 × 538,028,520.76
  4. Step 4: Simplify right side
    961,418,440x = 713,863,444,158,147,456
  5. Step 5: Solve for x
    x = 713,863,444,158,147,456/961,418,440
  6. Step 6: Final answer
    x = 742,510,663.89

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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.