Home / 66,488,195.20-99,735,403.20-21,053,545.60

Finding the Fourth Proportional to 66,488,195.20, 99,735,403.20 and 21,053,545.60

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Solution

The fourth proportional to 66,488,195.20, 99,735,403.20 and 21,053,545.60 is: 31,581,303.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,488,195.20 : 99,735,403.20 = 21,053,545.60 : x
  2. Step 2: Convert to fraction form
    66,488,195.20/99,735,403.20 = 21,053,545.60/x
  3. Step 3: Cross multiply
    66,488,195.20x = 99,735,403.20 × 21,053,545.60
  4. Step 4: Simplify right side
    66,488,195.20x = 2,099,783,859,205,586.25
  5. Step 5: Solve for x
    x = 2,099,783,859,205,586.25/66,488,195.20
  6. Step 6: Final answer
    x = 31,581,303.31

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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.