Home / 72,436,872.90-108,655,309.35-43,668,200.10

Finding the Fourth Proportional to 72,436,872.90, 108,655,309.35 and 43,668,200.10

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Solution

The fourth proportional to 72,436,872.90, 108,655,309.35 and 43,668,200.10 is: 65,502,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,436,872.90 : 108,655,309.35 = 43,668,200.10 : x
  2. Step 2: Convert to fraction form
    72,436,872.90/108,655,309.35 = 43,668,200.10/x
  3. Step 3: Cross multiply
    72,436,872.90x = 108,655,309.35 × 43,668,200.10
  4. Step 4: Simplify right side
    72,436,872.90x = 4,744,781,790,623,201
  5. Step 5: Solve for x
    x = 4,744,781,790,623,201/72,436,872.90
  6. Step 6: Final answer
    x = 65,502,300.15

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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.