Home / 18,911,524.80-28,367,287.20-11,334,590.40

Finding the Fourth Proportional to 18,911,524.80, 28,367,287.20 and 11,334,590.40

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Solution

The fourth proportional to 18,911,524.80, 28,367,287.20 and 11,334,590.40 is: 17,001,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911,524.80 : 28,367,287.20 = 11,334,590.40 : x
  2. Step 2: Convert to fraction form
    18,911,524.80/28,367,287.20 = 11,334,590.40/x
  3. Step 3: Cross multiply
    18,911,524.80x = 28,367,287.20 × 11,334,590.40
  4. Step 4: Simplify right side
    18,911,524.80x = 321,531,581,171,162.88
  5. Step 5: Solve for x
    x = 321,531,581,171,162.88/18,911,524.80
  6. Step 6: Final answer
    x = 17,001,885.60

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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.