Home / 12,999,635.20-19,499,452.80-9,220,499.20

Finding the Fourth Proportional to 12,999,635.20, 19,499,452.80 and 9,220,499.20

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Solution

The fourth proportional to 12,999,635.20, 19,499,452.80 and 9,220,499.20 is: 13,830,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,635.20 : 19,499,452.80 = 9,220,499.20 : x
  2. Step 2: Convert to fraction form
    12,999,635.20/19,499,452.80 = 9,220,499.20/x
  3. Step 3: Cross multiply
    12,999,635.20x = 19,499,452.80 × 9,220,499.20
  4. Step 4: Simplify right side
    12,999,635.20x = 179,794,688,942,837.75
  5. Step 5: Solve for x
    x = 179,794,688,942,837.75/12,999,635.20
  6. Step 6: Final answer
    x = 13,830,748.80

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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.