Home / 10,431,330.90-15,646,996.35-7,911,906.90

Finding the Fourth Proportional to 10,431,330.90, 15,646,996.35 and 7,911,906.90

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Solution

The fourth proportional to 10,431,330.90, 15,646,996.35 and 7,911,906.90 is: 11,867,860.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431,330.90 : 15,646,996.35 = 7,911,906.90 : x
  2. Step 2: Convert to fraction form
    10,431,330.90/15,646,996.35 = 7,911,906.90/x
  3. Step 3: Cross multiply
    10,431,330.90x = 15,646,996.35 × 7,911,906.90
  4. Step 4: Simplify right side
    10,431,330.90x = 123,797,578,385,839.81
  5. Step 5: Solve for x
    x = 123,797,578,385,839.81/10,431,330.90
  6. Step 6: Final answer
    x = 11,867,860.35

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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.