Home / 17,420,155.20-26,128,543.50-5,289,723.72

Finding the Fourth Proportional to 17,420,155.20, 26,128,543.50 and 5,289,723.72

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Solution

The fourth proportional to 17,420,155.20, 26,128,543.50 and 5,289,723.72 is: 7,934,072.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,420,155.20 : 26,128,543.50 = 5,289,723.72 : x
  2. Step 2: Convert to fraction form
    17,420,155.20/26,128,543.50 = 5,289,723.72/x
  3. Step 3: Cross multiply
    17,420,155.20x = 26,128,543.50 × 5,289,723.72
  4. Step 4: Simplify right side
    17,420,155.20x = 138,212,776,321,001.81
  5. Step 5: Solve for x
    x = 138,212,776,321,001.81/17,420,155.20
  6. Step 6: Final answer
    x = 7,934,072.61

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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.