Home / 12,589,920.40-18,884,880.60-3,492,000.40

Finding the Fourth Proportional to 12,589,920.40, 18,884,880.60 and 3,492,000.40

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Solution

The fourth proportional to 12,589,920.40, 18,884,880.60 and 3,492,000.40 is: 5,238,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,920.40 : 18,884,880.60 = 3,492,000.40 : x
  2. Step 2: Convert to fraction form
    12,589,920.40/18,884,880.60 = 3,492,000.40/x
  3. Step 3: Cross multiply
    12,589,920.40x = 18,884,880.60 × 3,492,000.40
  4. Step 4: Simplify right side
    12,589,920.40x = 65,946,010,609,152.24
  5. Step 5: Solve for x
    x = 65,946,010,609,152.24/12,589,920.40
  6. Step 6: Final answer
    x = 5,238,000.60

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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.