Home / 130,493,905.87-180,093,064.76-71,766,919.75

Finding the Fourth Proportional to 130,493,905.87, 180,093,064.76 and 71,766,919.75

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Solution

The fourth proportional to 130,493,905.87, 180,093,064.76 and 71,766,919.75 is: 99,044,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,493,905.87 : 180,093,064.76 = 71,766,919.75 : x
  2. Step 2: Convert to fraction form
    130,493,905.87/180,093,064.76 = 71,766,919.75/x
  3. Step 3: Cross multiply
    130,493,905.87x = 180,093,064.76 × 71,766,919.75
  4. Step 4: Simplify right side
    130,493,905.87x = 12,924,724,526,162,472
  5. Step 5: Solve for x
    x = 12,924,724,526,162,472/130,493,905.87
  6. Step 6: Final answer
    x = 99,044,659.90

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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.