Home / 12,459,816.80-18,652,400.40-7,408,527.20

Finding the Fourth Proportional to 12,459,816.80, 18,652,400.40 and 7,408,527.20

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Solution

The fourth proportional to 12,459,816.80, 18,652,400.40 and 7,408,527.20 is: 11,090,597.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,816.80 : 18,652,400.40 = 7,408,527.20 : x
  2. Step 2: Convert to fraction form
    12,459,816.80/18,652,400.40 = 7,408,527.20/x
  3. Step 3: Cross multiply
    12,459,816.80x = 18,652,400.40 × 7,408,527.20
  4. Step 4: Simplify right side
    12,459,816.80x = 138,186,815,708,690.88
  5. Step 5: Solve for x
    x = 138,186,815,708,690.88/12,459,816.80
  6. Step 6: Final answer
    x = 11,090,597.71

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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.