Home / 20,139,672.90-30,209,509.35-5,763,209.70

Finding the Fourth Proportional to 20,139,672.90, 30,209,509.35 and 5,763,209.70

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Solution

The fourth proportional to 20,139,672.90, 30,209,509.35 and 5,763,209.70 is: 8,644,814.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,672.90 : 30,209,509.35 = 5,763,209.70 : x
  2. Step 2: Convert to fraction form
    20,139,672.90/30,209,509.35 = 5,763,209.70/x
  3. Step 3: Cross multiply
    20,139,672.90x = 30,209,509.35 × 5,763,209.70
  4. Step 4: Simplify right side
    20,139,672.90x = 174,103,737,318,160.72
  5. Step 5: Solve for x
    x = 174,103,737,318,160.72/20,139,672.90
  6. Step 6: Final answer
    x = 8,644,814.55

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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.