Home / 13,348,019.70-20,022,029.55-7,280,406.90

Finding the Fourth Proportional to 13,348,019.70, 20,022,029.55 and 7,280,406.90

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Solution

The fourth proportional to 13,348,019.70, 20,022,029.55 and 7,280,406.90 is: 10,920,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,019.70 : 20,022,029.55 = 7,280,406.90 : x
  2. Step 2: Convert to fraction form
    13,348,019.70/20,022,029.55 = 7,280,406.90/x
  3. Step 3: Cross multiply
    13,348,019.70x = 20,022,029.55 × 7,280,406.90
  4. Step 4: Simplify right side
    13,348,019.70x = 145,768,522,087,823.91
  5. Step 5: Solve for x
    x = 145,768,522,087,823.91/13,348,019.70
  6. Step 6: Final answer
    x = 10,920,610.35

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Similar ratio
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1.5x scale

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.