Home / 125,005,898.74-172,491,780.93-72,084,561.02

Finding the Fourth Proportional to 125,005,898.74, 172,491,780.93 and 72,084,561.02

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Solution

The fourth proportional to 125,005,898.74, 172,491,780.93 and 72,084,561.02 is: 99,467,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,005,898.74 : 172,491,780.93 = 72,084,561.02 : x
  2. Step 2: Convert to fraction form
    125,005,898.74/172,491,780.93 = 72,084,561.02/x
  3. Step 3: Cross multiply
    125,005,898.74x = 172,491,780.93 × 72,084,561.02
  4. Step 4: Simplify right side
    125,005,898.74x = 12,433,994,307,897,058
  5. Step 5: Solve for x
    x = 12,433,994,307,897,058/125,005,898.74
  6. Step 6: Final answer
    x = 99,467,260.62

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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.