Home / 220,053,853.20-330,080,779.80-66,679,980.60

Finding the Fourth Proportional to 220,053,853.20, 330,080,779.80 and 66,679,980.60

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Solution

The fourth proportional to 220,053,853.20, 330,080,779.80 and 66,679,980.60 is: 100,019,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,053,853.20 : 330,080,779.80 = 66,679,980.60 : x
  2. Step 2: Convert to fraction form
    220,053,853.20/330,080,779.80 = 66,679,980.60/x
  3. Step 3: Cross multiply
    220,053,853.20x = 330,080,779.80 × 66,679,980.60
  4. Step 4: Simplify right side
    220,053,853.20x = 22,009,779,993,496,872
  5. Step 5: Solve for x
    x = 22,009,779,993,496,872/220,053,853.20
  6. Step 6: Final answer
    x = 100,019,970.90

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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.