Home / 13,359,630.40-20,023,699.20-9,989,900.80

Finding the Fourth Proportional to 13,359,630.40, 20,023,699.20 and 9,989,900.80

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Solution

The fourth proportional to 13,359,630.40, 20,023,699.20 and 9,989,900.80 is: 14,973,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359,630.40 : 20,023,699.20 = 9,989,900.80 : x
  2. Step 2: Convert to fraction form
    13,359,630.40/20,023,699.20 = 9,989,900.80/x
  3. Step 3: Cross multiply
    13,359,630.40x = 20,023,699.20 × 9,989,900.80
  4. Step 4: Simplify right side
    13,359,630.40x = 200,034,768,657,039.38
  5. Step 5: Solve for x
    x = 200,034,768,657,039.38/13,359,630.40
  6. Step 6: Final answer
    x = 14,973,076.55

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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.