Home / 80,762,616.90-121,161,640.05-39,841,659.90

Finding the Fourth Proportional to 80,762,616.90, 121,161,640.05 and 39,841,659.90

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Solution

The fourth proportional to 80,762,616.90, 121,161,640.05 and 39,841,659.90 is: 59,771,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,762,616.90 : 121,161,640.05 = 39,841,659.90 : x
  2. Step 2: Convert to fraction form
    80,762,616.90/121,161,640.05 = 39,841,659.90/x
  3. Step 3: Cross multiply
    80,762,616.90x = 121,161,640.05 × 39,841,659.90
  4. Step 4: Simplify right side
    80,762,616.90x = 4,827,280,855,798,319
  5. Step 5: Solve for x
    x = 4,827,280,855,798,319/80,762,616.90
  6. Step 6: Final answer
    x = 59,771,228.83

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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.