Home / 137,213,824.80-205,631,780.40-91,024,384.80

Finding the Fourth Proportional to 137,213,824.80, 205,631,780.40 and 91,024,384.80

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Solution

The fourth proportional to 137,213,824.80, 205,631,780.40 and 91,024,384.80 is: 136,411,227.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,213,824.80 : 205,631,780.40 = 91,024,384.80 : x
  2. Step 2: Convert to fraction form
    137,213,824.80/205,631,780.40 = 91,024,384.80/x
  3. Step 3: Cross multiply
    137,213,824.80x = 205,631,780.40 × 91,024,384.80
  4. Step 4: Simplify right side
    137,213,824.80x = 18,717,506,306,238,696
  5. Step 5: Solve for x
    x = 18,717,506,306,238,696/137,213,824.80
  6. Step 6: Final answer
    x = 136,411,227.76

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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.