Home / 20,970,199.20-31,455,298.80-17,946,890.40

Finding the Fourth Proportional to 20,970,199.20, 31,455,298.80 and 17,946,890.40

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Solution

The fourth proportional to 20,970,199.20, 31,455,298.80 and 17,946,890.40 is: 26,920,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,199.20 : 31,455,298.80 = 17,946,890.40 : x
  2. Step 2: Convert to fraction form
    20,970,199.20/31,455,298.80 = 17,946,890.40/x
  3. Step 3: Cross multiply
    20,970,199.20x = 31,455,298.80 × 17,946,890.40
  4. Step 4: Simplify right side
    20,970,199.20x = 564,524,800,062,851.50
  5. Step 5: Solve for x
    x = 564,524,800,062,851.50/20,970,199.20
  6. Step 6: Final answer
    x = 26,920,335.60

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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.