Home / 72,312,520.91-99,797,433.24-40,956,147.92

Finding the Fourth Proportional to 72,312,520.91, 99,797,433.24 and 40,956,147.92

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Solution

The fourth proportional to 72,312,520.91, 99,797,433.24 and 40,956,147.92 is: 56,522,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,312,520.91 : 99,797,433.24 = 40,956,147.92 : x
  2. Step 2: Convert to fraction form
    72,312,520.91/99,797,433.24 = 40,956,147.92/x
  3. Step 3: Cross multiply
    72,312,520.91x = 99,797,433.24 × 40,956,147.92
  4. Step 4: Simplify right side
    72,312,520.91x = 4,087,318,438,063,258
  5. Step 5: Solve for x
    x = 4,087,318,438,063,258/72,312,520.91
  6. Step 6: Final answer
    x = 56,522,969.84

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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.