Home / 781,484,952.40-1,078,451,356.38-429,083,768.56

Finding the Fourth Proportional to 781,484,952.40, 1,078,451,356.38 and 429,083,768.56

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Solution

The fourth proportional to 781,484,952.40, 1,078,451,356.38 and 429,083,768.56 is: 592,136,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,484,952.40 : 1,078,451,356.38 = 429,083,768.56 : x
  2. Step 2: Convert to fraction form
    781,484,952.40/1,078,451,356.38 = 429,083,768.56/x
  3. Step 3: Cross multiply
    781,484,952.40x = 1,078,451,356.38 × 429,083,768.56
  4. Step 4: Simplify right side
    781,484,952.40x = 462,745,972,204,174,080
  5. Step 5: Solve for x
    x = 462,745,972,204,174,080/781,484,952.40
  6. Step 6: Final answer
    x = 592,136,765.76

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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.