Home / 12,071,738.90-18,107,608.35-9,237,386.90

Finding the Fourth Proportional to 12,071,738.90, 18,107,608.35 and 9,237,386.90

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Solution

The fourth proportional to 12,071,738.90, 18,107,608.35 and 9,237,386.90 is: 13,856,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071,738.90 : 18,107,608.35 = 9,237,386.90 : x
  2. Step 2: Convert to fraction form
    12,071,738.90/18,107,608.35 = 9,237,386.90/x
  3. Step 3: Cross multiply
    12,071,738.90x = 18,107,608.35 × 9,237,386.90
  4. Step 4: Simplify right side
    12,071,738.90x = 167,266,984,162,620.62
  5. Step 5: Solve for x
    x = 167,266,984,162,620.62/12,071,738.90
  6. Step 6: Final answer
    x = 13,856,080.35

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Double scale
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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.