Home / 538,466,805.60-807,700,208.40-280,186,479.60

Finding the Fourth Proportional to 538,466,805.60, 807,700,208.40 and 280,186,479.60

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Solution

The fourth proportional to 538,466,805.60, 807,700,208.40 and 280,186,479.60 is: 420,279,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,466,805.60 : 807,700,208.40 = 280,186,479.60 : x
  2. Step 2: Convert to fraction form
    538,466,805.60/807,700,208.40 = 280,186,479.60/x
  3. Step 3: Cross multiply
    538,466,805.60x = 807,700,208.40 × 280,186,479.60
  4. Step 4: Simplify right side
    538,466,805.60x = 226,306,677,963,782,368
  5. Step 5: Solve for x
    x = 226,306,677,963,782,368/538,466,805.60
  6. Step 6: Final answer
    x = 420,279,719.40

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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.