Home / 10,125,205.33-13,972,820.38-5,478,990.40

Finding the Fourth Proportional to 10,125,205.33, 13,972,820.38 and 5,478,990.40

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Solution

The fourth proportional to 10,125,205.33, 13,972,820.38 and 5,478,990.40 is: 7,561,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125,205.33 : 13,972,820.38 = 5,478,990.40 : x
  2. Step 2: Convert to fraction form
    10,125,205.33/13,972,820.38 = 5,478,990.40/x
  3. Step 3: Cross multiply
    10,125,205.33x = 13,972,820.38 × 5,478,990.40
  4. Step 4: Simplify right side
    10,125,205.33x = 76,556,948,695,549.41
  5. Step 5: Solve for x
    x = 76,556,948,695,549.41/10,125,205.33
  6. Step 6: Final answer
    x = 7,561,026.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.