Home / 442,714,439.19-665,079,428.40-320,270,432.79

Finding the Fourth Proportional to 442,714,439.19, 665,079,428.40 and 320,270,432.79

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Solution

The fourth proportional to 442,714,439.19, 665,079,428.40 and 320,270,432.79 is: 481,134,694.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,714,439.19 : 665,079,428.40 = 320,270,432.79 : x
  2. Step 2: Convert to fraction form
    442,714,439.19/665,079,428.40 = 320,270,432.79/x
  3. Step 3: Cross multiply
    442,714,439.19x = 665,079,428.40 × 320,270,432.79
  4. Step 4: Simplify right side
    442,714,439.19x = 213,005,276,373,393,824
  5. Step 5: Solve for x
    x = 213,005,276,373,393,824/442,714,439.19
  6. Step 6: Final answer
    x = 481,134,694.33

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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.