Home / 13,608,785.70-20,413,178.55-5,087,358.90

Finding the Fourth Proportional to 13,608,785.70, 20,413,178.55 and 5,087,358.90

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Solution

The fourth proportional to 13,608,785.70, 20,413,178.55 and 5,087,358.90 is: 7,631,038.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,785.70 : 20,413,178.55 = 5,087,358.90 : x
  2. Step 2: Convert to fraction form
    13,608,785.70/20,413,178.55 = 5,087,358.90/x
  3. Step 3: Cross multiply
    13,608,785.70x = 20,413,178.55 × 5,087,358.90
  4. Step 4: Simplify right side
    13,608,785.70x = 103,849,165,573,631.61
  5. Step 5: Solve for x
    x = 103,849,165,573,631.61/13,608,785.70
  6. Step 6: Final answer
    x = 7,631,038.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.