Home / 66,440,430.60-99,660,645.90-42,100,432.80

Finding the Fourth Proportional to 66,440,430.60, 99,660,645.90 and 42,100,432.80

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Solution

The fourth proportional to 66,440,430.60, 99,660,645.90 and 42,100,432.80 is: 63,150,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440,430.60 : 99,660,645.90 = 42,100,432.80 : x
  2. Step 2: Convert to fraction form
    66,440,430.60/99,660,645.90 = 42,100,432.80/x
  3. Step 3: Cross multiply
    66,440,430.60x = 99,660,645.90 × 42,100,432.80
  4. Step 4: Simplify right side
    66,440,430.60x = 4,195,756,325,517,545.50
  5. Step 5: Solve for x
    x = 4,195,756,325,517,545.50/66,440,430.60
  6. Step 6: Final answer
    x = 63,150,649.20

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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.