Home / 312,023,618.40-468,091,414.80-130,289,167.20

Finding the Fourth Proportional to 312,023,618.40, 468,091,414.80 and 130,289,167.20

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Solution

The fourth proportional to 312,023,618.40, 468,091,414.80 and 130,289,167.20 is: 195,457,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,023,618.40 : 468,091,414.80 = 130,289,167.20 : x
  2. Step 2: Convert to fraction form
    312,023,618.40/468,091,414.80 = 130,289,167.20/x
  3. Step 3: Cross multiply
    312,023,618.40x = 468,091,414.80 × 130,289,167.20
  4. Step 4: Simplify right side
    312,023,618.40x = 60,987,240,607,761,760
  5. Step 5: Solve for x
    x = 60,987,240,607,761,760/312,023,618.40
  6. Step 6: Final answer
    x = 195,457,128.92

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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.