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Finding the Fourth Proportional to 201,070,861.20, 301,641,721.20 and 71,753,551.20

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Solution

The fourth proportional to 201,070,861.20, 301,641,721.20 and 71,753,551.20 is: 107,642,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,070,861.20 : 301,641,721.20 = 71,753,551.20 : x
  2. Step 2: Convert to fraction form
    201,070,861.20/301,641,721.20 = 71,753,551.20/x
  3. Step 3: Cross multiply
    201,070,861.20x = 301,641,721.20 × 71,753,551.20
  4. Step 4: Simplify right side
    201,070,861.20x = 21,643,864,686,180,324
  5. Step 5: Solve for x
    x = 21,643,864,686,180,324/201,070,861.20
  6. Step 6: Final answer
    x = 107,642,970.03

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.