Home / 172,465,385.30-258,698,077.95-155,459,273.30

Finding the Fourth Proportional to 172,465,385.30, 258,698,077.95 and 155,459,273.30

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Solution

The fourth proportional to 172,465,385.30, 258,698,077.95 and 155,459,273.30 is: 233,188,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,465,385.30 : 258,698,077.95 = 155,459,273.30 : x
  2. Step 2: Convert to fraction form
    172,465,385.30/258,698,077.95 = 155,459,273.30/x
  3. Step 3: Cross multiply
    172,465,385.30x = 258,698,077.95 × 155,459,273.30
  4. Step 4: Simplify right side
    172,465,385.30x = 40,217,015,202,213,752
  5. Step 5: Solve for x
    x = 40,217,015,202,213,752/172,465,385.30
  6. Step 6: Final answer
    x = 233,188,909.95

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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.