Home / 520,474,098.46-718,250,004.71-282,318,686.72

Finding the Fourth Proportional to 520,474,098.46, 718,250,004.71 and 282,318,686.72

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Solution

The fourth proportional to 520,474,098.46, 718,250,004.71 and 282,318,686.72 is: 389,597,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,474,098.46 : 718,250,004.71 = 282,318,686.72 : x
  2. Step 2: Convert to fraction form
    520,474,098.46/718,250,004.71 = 282,318,686.72/x
  3. Step 3: Cross multiply
    520,474,098.46x = 718,250,004.71 × 282,318,686.72
  4. Step 4: Simplify right side
    520,474,098.46x = 202,775,398,064,949,440
  5. Step 5: Solve for x
    x = 202,775,398,064,949,440/520,474,098.46
  6. Step 6: Final answer
    x = 389,597,481.73

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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.