Home / 177,487,671.40-266,231,507.10-120,156,778.60

Finding the Fourth Proportional to 177,487,671.40, 266,231,507.10 and 120,156,778.60

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Solution

The fourth proportional to 177,487,671.40, 266,231,507.10 and 120,156,778.60 is: 180,235,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,487,671.40 : 266,231,507.10 = 120,156,778.60 : x
  2. Step 2: Convert to fraction form
    177,487,671.40/266,231,507.10 = 120,156,778.60/x
  3. Step 3: Cross multiply
    177,487,671.40x = 266,231,507.10 × 120,156,778.60
  4. Step 4: Simplify right side
    177,487,671.40x = 31,989,520,254,959,024
  5. Step 5: Solve for x
    x = 31,989,520,254,959,024/177,487,671.40
  6. Step 6: Final answer
    x = 180,235,167.90

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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.