Home / 142,435,161.30-213,648,756.15-45,396,691.92

Finding the Fourth Proportional to 142,435,161.30, 213,648,756.15 and 45,396,691.92

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Solution

The fourth proportional to 142,435,161.30, 213,648,756.15 and 45,396,691.92 is: 68,093,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,435,161.30 : 213,648,756.15 = 45,396,691.92 : x
  2. Step 2: Convert to fraction form
    142,435,161.30/213,648,756.15 = 45,396,691.92/x
  3. Step 3: Cross multiply
    142,435,161.30x = 213,648,756.15 × 45,396,691.92
  4. Step 4: Simplify right side
    142,435,161.30x = 9,698,946,762,032,756
  5. Step 5: Solve for x
    x = 9,698,946,762,032,756/142,435,161.30
  6. Step 6: Final answer
    x = 68,093,767.53

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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.