Home / 20,768,463.60-31,152,695.40-15,028,900.80

Finding the Fourth Proportional to 20,768,463.60, 31,152,695.40 and 15,028,900.80

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Solution

The fourth proportional to 20,768,463.60, 31,152,695.40 and 15,028,900.80 is: 22,543,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768,463.60 : 31,152,695.40 = 15,028,900.80 : x
  2. Step 2: Convert to fraction form
    20,768,463.60/31,152,695.40 = 15,028,900.80/x
  3. Step 3: Cross multiply
    20,768,463.60x = 31,152,695.40 × 15,028,900.80
  4. Step 4: Simplify right side
    20,768,463.60x = 468,190,768,819,216.31
  5. Step 5: Solve for x
    x = 468,190,768,819,216.31/20,768,463.60
  6. Step 6: Final answer
    x = 22,543,351.20

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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.