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Finding the Fourth Proportional to 499,243,267.56, 748,967,039.22 and 171,676,238.28

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Solution

The fourth proportional to 499,243,267.56, 748,967,039.22 and 171,676,238.28 is: 257,549,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,243,267.56 : 748,967,039.22 = 171,676,238.28 : x
  2. Step 2: Convert to fraction form
    499,243,267.56/748,967,039.22 = 171,676,238.28/x
  3. Step 3: Cross multiply
    499,243,267.56x = 748,967,039.22 × 171,676,238.28
  4. Step 4: Simplify right side
    499,243,267.56x = 128,579,843,888,998,832
  5. Step 5: Solve for x
    x = 128,579,843,888,998,832/499,243,267.56
  6. Step 6: Final answer
    x = 257,549,479.87

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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.