Home / 12,117,621.60-18,176,432.40-8,291,246.40

Finding the Fourth Proportional to 12,117,621.60, 18,176,432.40 and 8,291,246.40

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Solution

The fourth proportional to 12,117,621.60, 18,176,432.40 and 8,291,246.40 is: 12,436,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117,621.60 : 18,176,432.40 = 8,291,246.40 : x
  2. Step 2: Convert to fraction form
    12,117,621.60/18,176,432.40 = 8,291,246.40/x
  3. Step 3: Cross multiply
    12,117,621.60x = 18,176,432.40 × 8,291,246.40
  4. Step 4: Simplify right side
    12,117,621.60x = 150,705,279,701,343.34
  5. Step 5: Solve for x
    x = 150,705,279,701,343.34/12,117,621.60
  6. Step 6: Final answer
    x = 12,436,869.60

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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.