Home / 201,204,912.10-301,807,368.15-71,958,460.90

Finding the Fourth Proportional to 201,204,912.10, 301,807,368.15 and 71,958,460.90

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Solution

The fourth proportional to 201,204,912.10, 301,807,368.15 and 71,958,460.90 is: 107,937,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,912.10 : 301,807,368.15 = 71,958,460.90 : x
  2. Step 2: Convert to fraction form
    201,204,912.10/301,807,368.15 = 71,958,460.90/x
  3. Step 3: Cross multiply
    201,204,912.10x = 301,807,368.15 × 71,958,460.90
  4. Step 4: Simplify right side
    201,204,912.10x = 21,717,593,700,353,680
  5. Step 5: Solve for x
    x = 21,717,593,700,353,680/201,204,912.10
  6. Step 6: Final answer
    x = 107,937,691.35

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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.