Home / 1,099,515,499.05-1,515,907,207.29-712,143,729.12

Finding the Fourth Proportional to 1,099,515,499.05, 1,515,907,207.29 and 712,143,729.12

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Solution

The fourth proportional to 1,099,515,499.05, 1,515,907,207.29 and 712,143,729.12 is: 981,835,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,515,499.05 : 1,515,907,207.29 = 712,143,729.12 : x
  2. Step 2: Convert to fraction form
    1,099,515,499.05/1,515,907,207.29 = 712,143,729.12/x
  3. Step 3: Cross multiply
    1,099,515,499.05x = 1,515,907,207.29 × 712,143,729.12
  4. Step 4: Simplify right side
    1,099,515,499.05x = 1,079,543,811,599,385,472
  5. Step 5: Solve for x
    x = 1,079,543,811,599,385,472/1,099,515,499.05
  6. Step 6: Final answer
    x = 981,835,920.03

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.