Home / 123,743,809.70-185,757,432.15-72,654,614.90

Finding the Fourth Proportional to 123,743,809.70, 185,757,432.15 and 72,654,614.90

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Solution

The fourth proportional to 123,743,809.70, 185,757,432.15 and 72,654,614.90 is: 109,065,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,743,809.70 : 185,757,432.15 = 72,654,614.90 : x
  2. Step 2: Convert to fraction form
    123,743,809.70/185,757,432.15 = 72,654,614.90/x
  3. Step 3: Cross multiply
    123,743,809.70x = 185,757,432.15 × 72,654,614.90
  4. Step 4: Simplify right side
    123,743,809.70x = 13,496,134,697,671,130
  5. Step 5: Solve for x
    x = 13,496,134,697,671,130/123,743,809.70
  6. Step 6: Final answer
    x = 109,065,130.05

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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.