Home / 157,534,137.43-217,381,570.28-86,965,165.15

Finding the Fourth Proportional to 157,534,137.43, 217,381,570.28 and 86,965,165.15

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Solution

The fourth proportional to 157,534,137.43, 217,381,570.28 and 86,965,165.15 is: 120,003,349.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,534,137.43 : 217,381,570.28 = 86,965,165.15 : x
  2. Step 2: Convert to fraction form
    157,534,137.43/217,381,570.28 = 86,965,165.15/x
  3. Step 3: Cross multiply
    157,534,137.43x = 217,381,570.28 × 86,965,165.15
  4. Step 4: Simplify right side
    157,534,137.43x = 18,904,624,158,444,796
  5. Step 5: Solve for x
    x = 18,904,624,158,444,796/157,534,137.43
  6. Step 6: Final answer
    x = 120,003,349.54

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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.