Home / 84,024,074.60-126,036,111.90-20,198,666.60

Finding the Fourth Proportional to 84,024,074.60, 126,036,111.90 and 20,198,666.60

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Solution

The fourth proportional to 84,024,074.60, 126,036,111.90 and 20,198,666.60 is: 30,297,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,024,074.60 : 126,036,111.90 = 20,198,666.60 : x
  2. Step 2: Convert to fraction form
    84,024,074.60/126,036,111.90 = 20,198,666.60/x
  3. Step 3: Cross multiply
    84,024,074.60x = 126,036,111.90 × 20,198,666.60
  4. Step 4: Simplify right side
    84,024,074.60x = 2,545,761,403,828,393
  5. Step 5: Solve for x
    x = 2,545,761,403,828,393/84,024,074.60
  6. Step 6: Final answer
    x = 30,297,999.90

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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.