Home / 18,697,122.60-28,045,683.90-8,619,426.60

Finding the Fourth Proportional to 18,697,122.60, 28,045,683.90 and 8,619,426.60

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Solution

The fourth proportional to 18,697,122.60, 28,045,683.90 and 8,619,426.60 is: 12,929,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,122.60 : 28,045,683.90 = 8,619,426.60 : x
  2. Step 2: Convert to fraction form
    18,697,122.60/28,045,683.90 = 8,619,426.60/x
  3. Step 3: Cross multiply
    18,697,122.60x = 28,045,683.90 × 8,619,426.60
  4. Step 4: Simplify right side
    18,697,122.60x = 241,737,713,822,851.72
  5. Step 5: Solve for x
    x = 241,737,713,822,851.72/18,697,122.60
  6. Step 6: Final answer
    x = 12,929,139.90

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Similar ratio
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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.