Home / 123,743,802.20-185,757,420.90-72,654,607.40

Finding the Fourth Proportional to 123,743,802.20, 185,757,420.90 and 72,654,607.40

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Solution

The fourth proportional to 123,743,802.20, 185,757,420.90 and 72,654,607.40 is: 109,065,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,743,802.20 : 185,757,420.90 = 72,654,607.40 : x
  2. Step 2: Convert to fraction form
    123,743,802.20/185,757,420.90 = 72,654,607.40/x
  3. Step 3: Cross multiply
    123,743,802.20x = 185,757,420.90 × 72,654,607.40
  4. Step 4: Simplify right side
    123,743,802.20x = 13,496,132,487,126,056
  5. Step 5: Solve for x
    x = 13,496,132,487,126,056/123,743,802.20
  6. Step 6: Final answer
    x = 109,065,118.80

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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.