Home / 66,432,898.80-99,649,348.20-39,111,145.20

Finding the Fourth Proportional to 66,432,898.80, 99,649,348.20 and 39,111,145.20

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Solution

The fourth proportional to 66,432,898.80, 99,649,348.20 and 39,111,145.20 is: 58,666,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432,898.80 : 99,649,348.20 = 39,111,145.20 : x
  2. Step 2: Convert to fraction form
    66,432,898.80/99,649,348.20 = 39,111,145.20/x
  3. Step 3: Cross multiply
    66,432,898.80x = 99,649,348.20 × 39,111,145.20
  4. Step 4: Simplify right side
    66,432,898.80x = 3,897,400,126,535,559
  5. Step 5: Solve for x
    x = 3,897,400,126,535,559/66,432,898.80
  6. Step 6: Final answer
    x = 58,666,717.80

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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.