Home / 67,153,279.42-100,729,919.13-18,631,141.48

Finding the Fourth Proportional to 67,153,279.42, 100,729,919.13 and 18,631,141.48

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Solution

The fourth proportional to 67,153,279.42, 100,729,919.13 and 18,631,141.48 is: 27,946,712.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,153,279.42 : 100,729,919.13 = 18,631,141.48 : x
  2. Step 2: Convert to fraction form
    67,153,279.42/100,729,919.13 = 18,631,141.48/x
  3. Step 3: Cross multiply
    67,153,279.42x = 100,729,919.13 × 18,631,141.48
  4. Step 4: Simplify right side
    67,153,279.42x = 1,876,713,374,579,988.50
  5. Step 5: Solve for x
    x = 1,876,713,374,579,988.50/67,153,279.42
  6. Step 6: Final answer
    x = 27,946,712.22

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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.