Home / 30,329,042.90-45,493,564.35-20,125,375.70

Finding the Fourth Proportional to 30,329,042.90, 45,493,564.35 and 20,125,375.70

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Solution

The fourth proportional to 30,329,042.90, 45,493,564.35 and 20,125,375.70 is: 30,188,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,329,042.90 : 45,493,564.35 = 20,125,375.70 : x
  2. Step 2: Convert to fraction form
    30,329,042.90/45,493,564.35 = 20,125,375.70/x
  3. Step 3: Cross multiply
    30,329,042.90x = 45,493,564.35 × 20,125,375.70
  4. Step 4: Simplify right side
    30,329,042.90x = 915,575,074,475,876.25
  5. Step 5: Solve for x
    x = 915,575,074,475,876.25/30,329,042.90
  6. Step 6: Final answer
    x = 30,188,063.55

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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.