Home / 151,689,474.30-209,337,402.96-85,612,258.20

Finding the Fourth Proportional to 151,689,474.30, 209,337,402.96 and 85,612,258.20

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Solution

The fourth proportional to 151,689,474.30, 209,337,402.96 and 85,612,258.20 is: 118,148,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,689,474.30 : 209,337,402.96 = 85,612,258.20 : x
  2. Step 2: Convert to fraction form
    151,689,474.30/209,337,402.96 = 85,612,258.20/x
  3. Step 3: Cross multiply
    151,689,474.30x = 209,337,402.96 × 85,612,258.20
  4. Step 4: Simplify right side
    151,689,474.30x = 17,921,847,793,128,966
  5. Step 5: Solve for x
    x = 17,921,847,793,128,966/151,689,474.30
  6. Step 6: Final answer
    x = 118,148,262.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.