Home / 7,982,409.20-11,973,613.80-5,431,492.40

Finding the Fourth Proportional to 7,982,409.20, 11,973,613.80 and 5,431,492.40

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Solution

The fourth proportional to 7,982,409.20, 11,973,613.80 and 5,431,492.40 is: 8,147,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982,409.20 : 11,973,613.80 = 5,431,492.40 : x
  2. Step 2: Convert to fraction form
    7,982,409.20/11,973,613.80 = 5,431,492.40/x
  3. Step 3: Cross multiply
    7,982,409.20x = 11,973,613.80 × 5,431,492.40
  4. Step 4: Simplify right side
    7,982,409.20x = 65,034,592,355,235.12
  5. Step 5: Solve for x
    x = 65,034,592,355,235.12/7,982,409.20
  6. Step 6: Final answer
    x = 8,147,238.60

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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.