Home / 77,182,903.20-115,774,354.80-38,919,151.20

Finding the Fourth Proportional to 77,182,903.20, 115,774,354.80 and 38,919,151.20

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Solution

The fourth proportional to 77,182,903.20, 115,774,354.80 and 38,919,151.20 is: 58,378,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,182,903.20 : 115,774,354.80 = 38,919,151.20 : x
  2. Step 2: Convert to fraction form
    77,182,903.20/115,774,354.80 = 38,919,151.20/x
  3. Step 3: Cross multiply
    77,182,903.20x = 115,774,354.80 × 38,919,151.20
  4. Step 4: Simplify right side
    77,182,903.20x = 4,505,839,619,543,646
  5. Step 5: Solve for x
    x = 4,505,839,619,543,646/77,182,903.20
  6. Step 6: Final answer
    x = 58,378,726.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.