Home / 21,547,042.80-32,320,564.20-13,469,139.60

Finding the Fourth Proportional to 21,547,042.80, 32,320,564.20 and 13,469,139.60

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Solution

The fourth proportional to 21,547,042.80, 32,320,564.20 and 13,469,139.60 is: 20,203,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547,042.80 : 32,320,564.20 = 13,469,139.60 : x
  2. Step 2: Convert to fraction form
    21,547,042.80/32,320,564.20 = 13,469,139.60/x
  3. Step 3: Cross multiply
    21,547,042.80x = 32,320,564.20 × 13,469,139.60
  4. Step 4: Simplify right side
    21,547,042.80x = 435,330,191,160,562.31
  5. Step 5: Solve for x
    x = 435,330,191,160,562.31/21,547,042.80
  6. Step 6: Final answer
    x = 20,203,709.40

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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.