Home / 5,078,139.92-7,007,833.17-2,902,730.21

Finding the Fourth Proportional to 5,078,139.92, 7,007,833.17 and 2,902,730.21

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Solution

The fourth proportional to 5,078,139.92, 7,007,833.17 and 2,902,730.21 is: 4,005,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078,139.92 : 7,007,833.17 = 2,902,730.21 : x
  2. Step 2: Convert to fraction form
    5,078,139.92/7,007,833.17 = 2,902,730.21/x
  3. Step 3: Cross multiply
    5,078,139.92x = 7,007,833.17 × 2,902,730.21
  4. Step 4: Simplify right side
    5,078,139.92x = 20,341,849,049,199.07
  5. Step 5: Solve for x
    x = 20,341,849,049,199.07/5,078,139.92
  6. Step 6: Final answer
    x = 4,005,767.74

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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.