Home / 200,218,697.10-300,328,045.65-70,972,245.90

Finding the Fourth Proportional to 200,218,697.10, 300,328,045.65 and 70,972,245.90

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Solution

The fourth proportional to 200,218,697.10, 300,328,045.65 and 70,972,245.90 is: 106,458,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,218,697.10 : 300,328,045.65 = 70,972,245.90 : x
  2. Step 2: Convert to fraction form
    200,218,697.10/300,328,045.65 = 70,972,245.90/x
  3. Step 3: Cross multiply
    200,218,697.10x = 300,328,045.65 × 70,972,245.90
  4. Step 4: Simplify right side
    200,218,697.10x = 21,314,955,906,538,224
  5. Step 5: Solve for x
    x = 21,314,955,906,538,224/200,218,697.10
  6. Step 6: Final answer
    x = 106,458,368.85

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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.