Home / 21,387,760.40-32,081,640.60-15,648,197.60

Finding the Fourth Proportional to 21,387,760.40, 32,081,640.60 and 15,648,197.60

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Solution

The fourth proportional to 21,387,760.40, 32,081,640.60 and 15,648,197.60 is: 23,472,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,760.40 : 32,081,640.60 = 15,648,197.60 : x
  2. Step 2: Convert to fraction form
    21,387,760.40/32,081,640.60 = 15,648,197.60/x
  3. Step 3: Cross multiply
    21,387,760.40x = 32,081,640.60 × 15,648,197.60
  4. Step 4: Simplify right side
    21,387,760.40x = 502,019,851,440,982.56
  5. Step 5: Solve for x
    x = 502,019,851,440,982.56/21,387,760.40
  6. Step 6: Final answer
    x = 23,472,296.40

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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.