Home / 86,851,384.20-130,281,265.92-28,557,771.57

Finding the Fourth Proportional to 86,851,384.20, 130,281,265.92 and 28,557,771.57

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Solution

The fourth proportional to 86,851,384.20, 130,281,265.92 and 28,557,771.57 is: 42,838,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,851,384.20 : 130,281,265.92 = 28,557,771.57 : x
  2. Step 2: Convert to fraction form
    86,851,384.20/130,281,265.92 = 28,557,771.57/x
  3. Step 3: Cross multiply
    86,851,384.20x = 130,281,265.92 × 28,557,771.57
  4. Step 4: Simplify right side
    86,851,384.20x = 3,720,542,632,100,877.50
  5. Step 5: Solve for x
    x = 3,720,542,632,100,877.50/86,851,384.20
  6. Step 6: Final answer
    x = 42,838,034.95

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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.