Home / 12,156,938.90-18,235,408.35-9,322,586.90

Finding the Fourth Proportional to 12,156,938.90, 18,235,408.35 and 9,322,586.90

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Solution

The fourth proportional to 12,156,938.90, 18,235,408.35 and 9,322,586.90 is: 13,983,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156,938.90 : 18,235,408.35 = 9,322,586.90 : x
  2. Step 2: Convert to fraction form
    12,156,938.90/18,235,408.35 = 9,322,586.90/x
  3. Step 3: Cross multiply
    12,156,938.90x = 18,235,408.35 × 9,322,586.90
  4. Step 4: Simplify right side
    12,156,938.90x = 170,001,178,999,860.62
  5. Step 5: Solve for x
    x = 170,001,178,999,860.62/12,156,938.90
  6. Step 6: Final answer
    x = 13,983,880.35

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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.