Home / 156,862,883.92-216,466,433.48-85,333,393.88

Finding the Fourth Proportional to 156,862,883.92, 216,466,433.48 and 85,333,393.88

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Solution

The fourth proportional to 156,862,883.92, 216,466,433.48 and 85,333,393.88 is: 117,757,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,862,883.92 : 216,466,433.48 = 85,333,393.88 : x
  2. Step 2: Convert to fraction form
    156,862,883.92/216,466,433.48 = 85,333,393.88/x
  3. Step 3: Cross multiply
    156,862,883.92x = 216,466,433.48 × 85,333,393.88
  4. Step 4: Simplify right side
    156,862,883.92x = 18,471,815,429,947,656
  5. Step 5: Solve for x
    x = 18,471,815,429,947,656/156,862,883.92
  6. Step 6: Final answer
    x = 117,757,719.15

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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.