Home / 13,490,327.90-20,235,491.85-9,185,655.80

Finding the Fourth Proportional to 13,490,327.90, 20,235,491.85 and 9,185,655.80

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Solution

The fourth proportional to 13,490,327.90, 20,235,491.85 and 9,185,655.80 is: 13,778,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490,327.90 : 20,235,491.85 = 9,185,655.80 : x
  2. Step 2: Convert to fraction form
    13,490,327.90/20,235,491.85 = 9,185,655.80/x
  3. Step 3: Cross multiply
    13,490,327.90x = 20,235,491.85 × 9,185,655.80
  4. Step 4: Simplify right side
    13,490,327.90x = 185,876,263,077,805.25
  5. Step 5: Solve for x
    x = 185,876,263,077,805.25/13,490,327.90
  6. Step 6: Final answer
    x = 13,778,483.70

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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.