Home / 13,586,687.70-18,749,710.56-7,391,778.87

Finding the Fourth Proportional to 13,586,687.70, 18,749,710.56 and 7,391,778.87

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Solution

The fourth proportional to 13,586,687.70, 18,749,710.56 and 7,391,778.87 is: 10,200,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586,687.70 : 18,749,710.56 = 7,391,778.87 : x
  2. Step 2: Convert to fraction form
    13,586,687.70/18,749,710.56 = 7,391,778.87/x
  3. Step 3: Cross multiply
    13,586,687.70x = 18,749,710.56 × 7,391,778.87
  4. Step 4: Simplify right side
    13,586,687.70x = 138,593,714,336,023.86
  5. Step 5: Solve for x
    x = 138,593,714,336,023.86/13,586,687.70
  6. Step 6: Final answer
    x = 10,200,699.20

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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.