Home / 81,351,426.24-112,267,160.64-47,863,242.72

Finding the Fourth Proportional to 81,351,426.24, 112,267,160.64 and 47,863,242.72

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Solution

The fourth proportional to 81,351,426.24, 112,267,160.64 and 47,863,242.72 is: 66,052,564.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,351,426.24 : 112,267,160.64 = 47,863,242.72 : x
  2. Step 2: Convert to fraction form
    81,351,426.24/112,267,160.64 = 47,863,242.72/x
  3. Step 3: Cross multiply
    81,351,426.24x = 112,267,160.64 × 47,863,242.72
  4. Step 4: Simplify right side
    81,351,426.24x = 5,373,470,359,197,550
  5. Step 5: Solve for x
    x = 5,373,470,359,197,550/81,351,426.24
  6. Step 6: Final answer
    x = 66,052,564.87

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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.