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Finding the Fourth Proportional to 399,949,873.92, 599,800,751.28 and 141,104,563.20

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Solution

The fourth proportional to 399,949,873.92, 599,800,751.28 and 141,104,563.20 is: 211,613,075.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,949,873.92 : 599,800,751.28 = 141,104,563.20 : x
  2. Step 2: Convert to fraction form
    399,949,873.92/599,800,751.28 = 141,104,563.20/x
  3. Step 3: Cross multiply
    399,949,873.92x = 599,800,751.28 × 141,104,563.20
  4. Step 4: Simplify right side
    399,949,873.92x = 84,634,623,016,396,224
  5. Step 5: Solve for x
    x = 84,634,623,016,396,224/399,949,873.92
  6. Step 6: Final answer
    x = 211,613,075.88

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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.