Home / 368,776,142.28-508,904,929.34-201,508,728.88

Finding the Fourth Proportional to 368,776,142.28, 508,904,929.34 and 201,508,728.88

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Solution

The fourth proportional to 368,776,142.28, 508,904,929.34 and 201,508,728.88 is: 278,078,686.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,776,142.28 : 508,904,929.34 = 201,508,728.88 : x
  2. Step 2: Convert to fraction form
    368,776,142.28/508,904,929.34 = 201,508,728.88/x
  3. Step 3: Cross multiply
    368,776,142.28x = 508,904,929.34 × 201,508,728.88
  4. Step 4: Simplify right side
    368,776,142.28x = 102,548,785,431,062,064
  5. Step 5: Solve for x
    x = 102,548,785,431,062,064/368,776,142.28
  6. Step 6: Final answer
    x = 278,078,686.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.