Home / 28,306,230.72-39,063,962.16-15,920,203.20

Finding the Fourth Proportional to 28,306,230.72, 39,063,962.16 and 15,920,203.20

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Solution

The fourth proportional to 28,306,230.72, 39,063,962.16 and 15,920,203.20 is: 21,970,647.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306,230.72 : 39,063,962.16 = 15,920,203.20 : x
  2. Step 2: Convert to fraction form
    28,306,230.72/39,063,962.16 = 15,920,203.20/x
  3. Step 3: Cross multiply
    28,306,230.72x = 39,063,962.16 × 15,920,203.20
  4. Step 4: Simplify right side
    28,306,230.72x = 621,906,215,384,310.88
  5. Step 5: Solve for x
    x = 621,906,215,384,310.88/28,306,230.72
  6. Step 6: Final answer
    x = 21,970,647.44

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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.