Home / 1,238,842,481.40-1,858,263,722.10-715,107,375.90

Finding the Fourth Proportional to 1,238,842,481.40, 1,858,263,722.10 and 715,107,375.90

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Solution

The fourth proportional to 1,238,842,481.40, 1,858,263,722.10 and 715,107,375.90 is: 1,072,661,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,842,481.40 : 1,858,263,722.10 = 715,107,375.90 : x
  2. Step 2: Convert to fraction form
    1,238,842,481.40/1,858,263,722.10 = 715,107,375.90/x
  3. Step 3: Cross multiply
    1,238,842,481.40x = 1,858,263,722.10 × 715,107,375.90
  4. Step 4: Simplify right side
    1,238,842,481.40x = 1,328,858,094,041,097,728
  5. Step 5: Solve for x
    x = 1,328,858,094,041,097,728/1,238,842,481.40
  6. Step 6: Final answer
    x = 1,072,661,063.85

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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.