Home / 125,005,898.61-172,491,780.75-72,084,560.90

Finding the Fourth Proportional to 125,005,898.61, 172,491,780.75 and 72,084,560.90

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Solution

The fourth proportional to 125,005,898.61, 172,491,780.75 and 72,084,560.90 is: 99,467,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,005,898.61 : 172,491,780.75 = 72,084,560.90 : x
  2. Step 2: Convert to fraction form
    125,005,898.61/172,491,780.75 = 72,084,560.90/x
  3. Step 3: Cross multiply
    125,005,898.61x = 172,491,780.75 × 72,084,560.90
  4. Step 4: Simplify right side
    125,005,898.61x = 12,433,994,273,360,364
  5. Step 5: Solve for x
    x = 12,433,994,273,360,364/125,005,898.61
  6. Step 6: Final answer
    x = 99,467,260.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.