Home / 52,490,221.20-78,735,331.80-45,309,862.80

Finding the Fourth Proportional to 52,490,221.20, 78,735,331.80 and 45,309,862.80

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Solution

The fourth proportional to 52,490,221.20, 78,735,331.80 and 45,309,862.80 is: 67,964,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,490,221.20 : 78,735,331.80 = 45,309,862.80 : x
  2. Step 2: Convert to fraction form
    52,490,221.20/78,735,331.80 = 45,309,862.80/x
  3. Step 3: Cross multiply
    52,490,221.20x = 78,735,331.80 × 45,309,862.80
  4. Step 4: Simplify right side
    52,490,221.20x = 3,567,487,081,370,476.50
  5. Step 5: Solve for x
    x = 3,567,487,081,370,476.50/52,490,221.20
  6. Step 6: Final answer
    x = 67,964,794.20

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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.