Home / 20,112,098.40-30,168,147.60-18,677,207.70

Finding the Fourth Proportional to 20,112,098.40, 30,168,147.60 and 18,677,207.70

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Solution

The fourth proportional to 20,112,098.40, 30,168,147.60 and 18,677,207.70 is: 28,015,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,098.40 : 30,168,147.60 = 18,677,207.70 : x
  2. Step 2: Convert to fraction form
    20,112,098.40/30,168,147.60 = 18,677,207.70/x
  3. Step 3: Cross multiply
    20,112,098.40x = 30,168,147.60 × 18,677,207.70
  4. Step 4: Simplify right side
    20,112,098.40x = 563,456,758,649,456.50
  5. Step 5: Solve for x
    x = 563,456,758,649,456.50/20,112,098.40
  6. Step 6: Final answer
    x = 28,015,811.55

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1.5x scale

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.