Home / 120,396,535.20-180,594,802.80-82,132,783.20

Finding the Fourth Proportional to 120,396,535.20, 180,594,802.80 and 82,132,783.20

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Solution

The fourth proportional to 120,396,535.20, 180,594,802.80 and 82,132,783.20 is: 123,199,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,396,535.20 : 180,594,802.80 = 82,132,783.20 : x
  2. Step 2: Convert to fraction form
    120,396,535.20/180,594,802.80 = 82,132,783.20/x
  3. Step 3: Cross multiply
    120,396,535.20x = 180,594,802.80 × 82,132,783.20
  4. Step 4: Simplify right side
    120,396,535.20x = 14,832,753,785,419,154
  5. Step 5: Solve for x
    x = 14,832,753,785,419,154/120,396,535.20
  6. Step 6: Final answer
    x = 123,199,174.80

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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.