Home / 215,631,970.74-323,481,398.07-91,135,123.47

Finding the Fourth Proportional to 215,631,970.74, 323,481,398.07 and 91,135,123.47

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Solution

The fourth proportional to 215,631,970.74, 323,481,398.07 and 91,135,123.47 is: 136,716,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,631,970.74 : 323,481,398.07 = 91,135,123.47 : x
  2. Step 2: Convert to fraction form
    215,631,970.74/323,481,398.07 = 91,135,123.47/x
  3. Step 3: Cross multiply
    215,631,970.74x = 323,481,398.07 × 91,135,123.47
  4. Step 4: Simplify right side
    215,631,970.74x = 29,480,517,153,357,668
  5. Step 5: Solve for x
    x = 29,480,517,153,357,668/215,631,970.74
  6. Step 6: Final answer
    x = 136,716,819.18

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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.