Home / 28,570,677.20-39,420,780.25-16,810,458.88

Finding the Fourth Proportional to 28,570,677.20, 39,420,780.25 and 16,810,458.88

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Solution

The fourth proportional to 28,570,677.20, 39,420,780.25 and 16,810,458.88 is: 23,194,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570,677.20 : 39,420,780.25 = 16,810,458.88 : x
  2. Step 2: Convert to fraction form
    28,570,677.20/39,420,780.25 = 16,810,458.88/x
  3. Step 3: Cross multiply
    28,570,677.20x = 39,420,780.25 × 16,810,458.88
  4. Step 4: Simplify right side
    28,570,677.20x = 662,681,405,374,996.62
  5. Step 5: Solve for x
    x = 662,681,405,374,996.62/28,570,677.20
  6. Step 6: Final answer
    x = 23,194,459.16

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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.