Home / 257,352,237.30-386,084,343.15-84,799,686.90

Finding the Fourth Proportional to 257,352,237.30, 386,084,343.15 and 84,799,686.90

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Solution

The fourth proportional to 257,352,237.30, 386,084,343.15 and 84,799,686.90 is: 127,217,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,352,237.30 : 386,084,343.15 = 84,799,686.90 : x
  2. Step 2: Convert to fraction form
    257,352,237.30/386,084,343.15 = 84,799,686.90/x
  3. Step 3: Cross multiply
    257,352,237.30x = 386,084,343.15 × 84,799,686.90
  4. Step 4: Simplify right side
    257,352,237.30x = 32,739,831,416,112,160
  5. Step 5: Solve for x
    x = 32,739,831,416,112,160/257,352,237.30
  6. Step 6: Final answer
    x = 127,217,978.59

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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.