Home / 12,357,655.60-18,536,483.40-11,853,770.80

Finding the Fourth Proportional to 12,357,655.60, 18,536,483.40 and 11,853,770.80

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Solution

The fourth proportional to 12,357,655.60, 18,536,483.40 and 11,853,770.80 is: 17,780,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,655.60 : 18,536,483.40 = 11,853,770.80 : x
  2. Step 2: Convert to fraction form
    12,357,655.60/18,536,483.40 = 11,853,770.80/x
  3. Step 3: Cross multiply
    12,357,655.60x = 18,536,483.40 × 11,853,770.80
  4. Step 4: Simplify right side
    12,357,655.60x = 219,727,225,661,604.72
  5. Step 5: Solve for x
    x = 219,727,225,661,604.72/12,357,655.60
  6. Step 6: Final answer
    x = 17,780,656.20

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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.