Home / 13,353,612.80-20,030,419.20-12,184,442.60

Finding the Fourth Proportional to 13,353,612.80, 20,030,419.20 and 12,184,442.60

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Solution

The fourth proportional to 13,353,612.80, 20,030,419.20 and 12,184,442.60 is: 18,276,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353,612.80 : 20,030,419.20 = 12,184,442.60 : x
  2. Step 2: Convert to fraction form
    13,353,612.80/20,030,419.20 = 12,184,442.60/x
  3. Step 3: Cross multiply
    13,353,612.80x = 20,030,419.20 × 12,184,442.60
  4. Step 4: Simplify right side
    13,353,612.80x = 244,059,492,996,337.91
  5. Step 5: Solve for x
    x = 244,059,492,996,337.91/13,353,612.80
  6. Step 6: Final answer
    x = 18,276,663.90

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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.