Home / 12,071,741.40-18,107,612.10-9,237,389.40

Finding the Fourth Proportional to 12,071,741.40, 18,107,612.10 and 9,237,389.40

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Solution

The fourth proportional to 12,071,741.40, 18,107,612.10 and 9,237,389.40 is: 13,856,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071,741.40 : 18,107,612.10 = 9,237,389.40 : x
  2. Step 2: Convert to fraction form
    12,071,741.40/18,107,612.10 = 9,237,389.40/x
  3. Step 3: Cross multiply
    12,071,741.40x = 18,107,612.10 × 9,237,389.40
  4. Step 4: Simplify right side
    12,071,741.40x = 167,267,064,071,851.75
  5. Step 5: Solve for x
    x = 167,267,064,071,851.75/12,071,741.40
  6. Step 6: Final answer
    x = 13,856,084.10

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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.