Home / 20,704,621.80-31,056,932.70-7,240,045.80

Finding the Fourth Proportional to 20,704,621.80, 31,056,932.70 and 7,240,045.80

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Solution

The fourth proportional to 20,704,621.80, 31,056,932.70 and 7,240,045.80 is: 10,860,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,621.80 : 31,056,932.70 = 7,240,045.80 : x
  2. Step 2: Convert to fraction form
    20,704,621.80/31,056,932.70 = 7,240,045.80/x
  3. Step 3: Cross multiply
    20,704,621.80x = 31,056,932.70 × 7,240,045.80
  4. Step 4: Simplify right side
    20,704,621.80x = 224,853,615,155,517.66
  5. Step 5: Solve for x
    x = 224,853,615,155,517.66/20,704,621.80
  6. Step 6: Final answer
    x = 10,860,068.70

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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.