Home / 145,073,608.60-217,468,695.30-129,768,107.80

Finding the Fourth Proportional to 145,073,608.60, 217,468,695.30 and 129,768,107.80

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Solution

The fourth proportional to 145,073,608.60, 217,468,695.30 and 129,768,107.80 is: 194,525,395.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,073,608.60 : 217,468,695.30 = 129,768,107.80 : x
  2. Step 2: Convert to fraction form
    145,073,608.60/217,468,695.30 = 129,768,107.80/x
  3. Step 3: Cross multiply
    145,073,608.60x = 217,468,695.30 × 129,768,107.80
  4. Step 4: Simplify right side
    145,073,608.60x = 28,220,501,094,815,756
  5. Step 5: Solve for x
    x = 28,220,501,094,815,756/145,073,608.60
  6. Step 6: Final answer
    x = 194,525,395.54

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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.