Home / 156,615,082.56-216,128,701.44-87,006,974.40

Finding the Fourth Proportional to 156,615,082.56, 216,128,701.44 and 87,006,974.40

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Solution

The fourth proportional to 156,615,082.56, 216,128,701.44 and 87,006,974.40 is: 120,069,562.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,615,082.56 : 216,128,701.44 = 87,006,974.40 : x
  2. Step 2: Convert to fraction form
    156,615,082.56/216,128,701.44 = 87,006,974.40/x
  3. Step 3: Cross multiply
    156,615,082.56x = 216,128,701.44 × 87,006,974.40
  4. Step 4: Simplify right side
    156,615,082.56x = 18,804,704,393,295,324
  5. Step 5: Solve for x
    x = 18,804,704,393,295,324/156,615,082.56
  6. Step 6: Final answer
    x = 120,069,562.18

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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.