Home / 15,947,812.80-23,921,719.20-7,429,010.40

Finding the Fourth Proportional to 15,947,812.80, 23,921,719.20 and 7,429,010.40

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Solution

The fourth proportional to 15,947,812.80, 23,921,719.20 and 7,429,010.40 is: 11,143,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,947,812.80 : 23,921,719.20 = 7,429,010.40 : x
  2. Step 2: Convert to fraction form
    15,947,812.80/23,921,719.20 = 7,429,010.40/x
  3. Step 3: Cross multiply
    15,947,812.80x = 23,921,719.20 × 7,429,010.40
  4. Step 4: Simplify right side
    15,947,812.80x = 177,714,700,722,679.69
  5. Step 5: Solve for x
    x = 177,714,700,722,679.69/15,947,812.80
  6. Step 6: Final answer
    x = 11,143,515.60

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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.