Home / 12,394,711.20-18,592,066.80-8,780,912.40

Finding the Fourth Proportional to 12,394,711.20, 18,592,066.80 and 8,780,912.40

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Solution

The fourth proportional to 12,394,711.20, 18,592,066.80 and 8,780,912.40 is: 13,171,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394,711.20 : 18,592,066.80 = 8,780,912.40 : x
  2. Step 2: Convert to fraction form
    12,394,711.20/18,592,066.80 = 8,780,912.40/x
  3. Step 3: Cross multiply
    12,394,711.20x = 18,592,066.80 × 8,780,912.40
  4. Step 4: Simplify right side
    12,394,711.20x = 163,255,309,905,748.34
  5. Step 5: Solve for x
    x = 163,255,309,905,748.34/12,394,711.20
  6. Step 6: Final answer
    x = 13,171,368.60

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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.