Home / 312,023,615.40-468,091,410.30-130,289,164.20

Finding the Fourth Proportional to 312,023,615.40, 468,091,410.30 and 130,289,164.20

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Solution

The fourth proportional to 312,023,615.40, 468,091,410.30 and 130,289,164.20 is: 195,457,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,023,615.40 : 468,091,410.30 = 130,289,164.20 : x
  2. Step 2: Convert to fraction form
    312,023,615.40/468,091,410.30 = 130,289,164.20/x
  3. Step 3: Cross multiply
    312,023,615.40x = 468,091,410.30 × 130,289,164.20
  4. Step 4: Simplify right side
    312,023,615.40x = 60,987,238,617,186,272
  5. Step 5: Solve for x
    x = 60,987,238,617,186,272/312,023,615.40
  6. Step 6: Final answer
    x = 195,457,124.42

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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.