Home / 10,502,947.20-15,745,089.60-6,238,588.80

Finding the Fourth Proportional to 10,502,947.20, 15,745,089.60 and 6,238,588.80

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Solution

The fourth proportional to 10,502,947.20, 15,745,089.60 and 6,238,588.80 is: 9,352,340.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,947.20 : 15,745,089.60 = 6,238,588.80 : x
  2. Step 2: Convert to fraction form
    10,502,947.20/15,745,089.60 = 6,238,588.80/x
  3. Step 3: Cross multiply
    10,502,947.20x = 15,745,089.60 × 6,238,588.80
  4. Step 4: Simplify right side
    10,502,947.20x = 98,227,139,633,556.47
  5. Step 5: Solve for x
    x = 98,227,139,633,556.47/10,502,947.20
  6. Step 6: Final answer
    x = 9,352,340.61

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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.