Home / 12,352,021.20-18,528,031.80-11,659,179.60

Finding the Fourth Proportional to 12,352,021.20, 18,528,031.80 and 11,659,179.60

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Solution

The fourth proportional to 12,352,021.20, 18,528,031.80 and 11,659,179.60 is: 17,488,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352,021.20 : 18,528,031.80 = 11,659,179.60 : x
  2. Step 2: Convert to fraction form
    12,352,021.20/18,528,031.80 = 11,659,179.60/x
  3. Step 3: Cross multiply
    12,352,021.20x = 18,528,031.80 × 11,659,179.60
  4. Step 4: Simplify right side
    12,352,021.20x = 216,021,650,390,711.28
  5. Step 5: Solve for x
    x = 216,021,650,390,711.28/12,352,021.20
  6. Step 6: Final answer
    x = 17,488,769.40

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1.5x scale

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.