Home / 18,680,673.60-28,011,679.20-8,571,873.60

Finding the Fourth Proportional to 18,680,673.60, 28,011,679.20 and 8,571,873.60

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Solution

The fourth proportional to 18,680,673.60, 28,011,679.20 and 8,571,873.60 is: 12,853,528.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680,673.60 : 28,011,679.20 = 8,571,873.60 : x
  2. Step 2: Convert to fraction form
    18,680,673.60/28,011,679.20 = 8,571,873.60/x
  3. Step 3: Cross multiply
    18,680,673.60x = 28,011,679.20 × 8,571,873.60
  4. Step 4: Simplify right side
    18,680,673.60x = 240,112,573,426,149.09
  5. Step 5: Solve for x
    x = 240,112,573,426,149.09/18,680,673.60
  6. Step 6: Final answer
    x = 12,853,528.66

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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.