Home / 12,156,987.55-18,191,194.57-8,968,341.55

Finding the Fourth Proportional to 12,156,987.55, 18,191,194.57 and 8,968,341.55

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Solution

The fourth proportional to 12,156,987.55, 18,191,194.57 and 8,968,341.55 is: 13,419,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156,987.55 : 18,191,194.57 = 8,968,341.55 : x
  2. Step 2: Convert to fraction form
    12,156,987.55/18,191,194.57 = 8,968,341.55/x
  3. Step 3: Cross multiply
    12,156,987.55x = 18,191,194.57 × 8,968,341.55
  4. Step 4: Simplify right side
    12,156,987.55x = 163,144,846,106,265.41
  5. Step 5: Solve for x
    x = 163,144,846,106,265.41/12,156,987.55
  6. Step 6: Final answer
    x = 13,419,841.51

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Double scale
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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.