Home / 731,228,912.47-1,009,097,855.13-396,701,434.91

Finding the Fourth Proportional to 731,228,912.47, 1,009,097,855.13 and 396,701,434.91

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Solution

The fourth proportional to 731,228,912.47, 1,009,097,855.13 and 396,701,434.91 is: 547,449,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,228,912.47 : 1,009,097,855.13 = 396,701,434.91 : x
  2. Step 2: Convert to fraction form
    731,228,912.47/1,009,097,855.13 = 396,701,434.91/x
  3. Step 3: Cross multiply
    731,228,912.47x = 1,009,097,855.13 × 396,701,434.91
  4. Step 4: Simplify right side
    731,228,912.47x = 400,310,567,098,664,896
  5. Step 5: Solve for x
    x = 400,310,567,098,664,896/731,228,912.47
  6. Step 6: Final answer
    x = 547,449,041.29

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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.