Home / 215,366,764.80-323,050,147.20-129,370,425.60

Finding the Fourth Proportional to 215,366,764.80, 323,050,147.20 and 129,370,425.60

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Solution

The fourth proportional to 215,366,764.80, 323,050,147.20 and 129,370,425.60 is: 194,055,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,366,764.80 : 323,050,147.20 = 129,370,425.60 : x
  2. Step 2: Convert to fraction form
    215,366,764.80/323,050,147.20 = 129,370,425.60/x
  3. Step 3: Cross multiply
    215,366,764.80x = 323,050,147.20 × 129,370,425.60
  4. Step 4: Simplify right side
    215,366,764.80x = 41,793,135,033,406,648
  5. Step 5: Solve for x
    x = 41,793,135,033,406,648/215,366,764.80
  6. Step 6: Final answer
    x = 194,055,638.40

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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.