Home / 103,458,839.80-155,188,259.70-91,813,502.20

Finding the Fourth Proportional to 103,458,839.80, 155,188,259.70 and 91,813,502.20

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Solution

The fourth proportional to 103,458,839.80, 155,188,259.70 and 91,813,502.20 is: 137,720,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,458,839.80 : 155,188,259.70 = 91,813,502.20 : x
  2. Step 2: Convert to fraction form
    103,458,839.80/155,188,259.70 = 91,813,502.20/x
  3. Step 3: Cross multiply
    103,458,839.80x = 155,188,259.70 × 91,813,502.20
  4. Step 4: Simplify right side
    103,458,839.80x = 14,248,377,623,380,120
  5. Step 5: Solve for x
    x = 14,248,377,623,380,120/103,458,839.80
  6. Step 6: Final answer
    x = 137,720,253.30

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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.