Home / 80,842,812.20-121,265,255.10-26,990,124.20

Finding the Fourth Proportional to 80,842,812.20, 121,265,255.10 and 26,990,124.20

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Solution

The fourth proportional to 80,842,812.20, 121,265,255.10 and 26,990,124.20 is: 40,485,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,842,812.20 : 121,265,255.10 = 26,990,124.20 : x
  2. Step 2: Convert to fraction form
    80,842,812.20/121,265,255.10 = 26,990,124.20/x
  3. Step 3: Cross multiply
    80,842,812.20x = 121,265,255.10 × 26,990,124.20
  4. Step 4: Simplify right side
    80,842,812.20x = 3,272,964,296,293,683
  5. Step 5: Solve for x
    x = 3,272,964,296,293,683/80,842,812.20
  6. Step 6: Final answer
    x = 40,485,532.45

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1.5x scale

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.