Home / 125,500,519.89-173,136,994.45-78,375,780.77

Finding the Fourth Proportional to 125,500,519.89, 173,136,994.45 and 78,375,780.77

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Solution

The fourth proportional to 125,500,519.89, 173,136,994.45 and 78,375,780.77 is: 108,125,027.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,500,519.89 : 173,136,994.45 = 78,375,780.77 : x
  2. Step 2: Convert to fraction form
    125,500,519.89/173,136,994.45 = 78,375,780.77/x
  3. Step 3: Cross multiply
    125,500,519.89x = 173,136,994.45 × 78,375,780.77
  4. Step 4: Simplify right side
    125,500,519.89x = 13,569,747,119,128,282
  5. Step 5: Solve for x
    x = 13,569,747,119,128,282/125,500,519.89
  6. Step 6: Final answer
    x = 108,125,027.14

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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.