Home / 361,218,516.78-498,522,904.70-202,491,509.93

Finding the Fourth Proportional to 361,218,516.78, 498,522,904.70 and 202,491,509.93

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Solution

The fourth proportional to 361,218,516.78, 498,522,904.70 and 202,491,509.93 is: 279,461,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,218,516.78 : 498,522,904.70 = 202,491,509.93 : x
  2. Step 2: Convert to fraction form
    361,218,516.78/498,522,904.70 = 202,491,509.93/x
  3. Step 3: Cross multiply
    361,218,516.78x = 498,522,904.70 × 202,491,509.93
  4. Step 4: Simplify right side
    361,218,516.78x = 100,946,655,707,392,496
  5. Step 5: Solve for x
    x = 100,946,655,707,392,496/361,218,516.78
  6. Step 6: Final answer
    x = 279,461,464.51

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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.