Home / 156,811,111.96-216,390,446.28-87,194,998.16

Finding the Fourth Proportional to 156,811,111.96, 216,390,446.28 and 87,194,998.16

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Solution

The fourth proportional to 156,811,111.96, 216,390,446.28 and 87,194,998.16 is: 120,324,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,811,111.96 : 216,390,446.28 = 87,194,998.16 : x
  2. Step 2: Convert to fraction form
    156,811,111.96/216,390,446.28 = 87,194,998.16/x
  3. Step 3: Cross multiply
    156,811,111.96x = 216,390,446.28 × 87,194,998.16
  4. Step 4: Simplify right side
    156,811,111.96x = 18,868,164,565,226,180
  5. Step 5: Solve for x
    x = 18,868,164,565,226,180/156,811,111.96
  6. Step 6: Final answer
    x = 120,324,155.15

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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.