Home / 21,860,590.12-30,170,274.24-12,693,232.88

Finding the Fourth Proportional to 21,860,590.12, 30,170,274.24 and 12,693,232.88

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Solution

The fourth proportional to 21,860,590.12, 30,170,274.24 and 12,693,232.88 is: 17,518,205.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,590.12 : 30,170,274.24 = 12,693,232.88 : x
  2. Step 2: Convert to fraction form
    21,860,590.12/30,170,274.24 = 12,693,232.88/x
  3. Step 3: Cross multiply
    21,860,590.12x = 30,170,274.24 × 12,693,232.88
  4. Step 4: Simplify right side
    21,860,590.12x = 382,958,316,981,785
  5. Step 5: Solve for x
    x = 382,958,316,981,785/21,860,590.12
  6. Step 6: Final answer
    x = 17,518,205.82

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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.