Home / 74,704,340.80-112,056,511.20-20,851,652.80

Finding the Fourth Proportional to 74,704,340.80, 112,056,511.20 and 20,851,652.80

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Solution

The fourth proportional to 74,704,340.80, 112,056,511.20 and 20,851,652.80 is: 31,277,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704,340.80 : 112,056,511.20 = 20,851,652.80 : x
  2. Step 2: Convert to fraction form
    74,704,340.80/112,056,511.20 = 20,851,652.80/x
  3. Step 3: Cross multiply
    74,704,340.80x = 112,056,511.20 × 20,851,652.80
  4. Step 4: Simplify right side
    74,704,340.80x = 2,336,563,465,521,711.50
  5. Step 5: Solve for x
    x = 2,336,563,465,521,711.50/74,704,340.80
  6. Step 6: Final answer
    x = 31,277,479.20

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Double scale
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Similar ratio
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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.