Home / 425,917,163.70-638,434,846.35-231,417,630.90

Finding the Fourth Proportional to 425,917,163.70, 638,434,846.35 and 231,417,630.90

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Solution

The fourth proportional to 425,917,163.70, 638,434,846.35 and 231,417,630.90 is: 346,886,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,917,163.70 : 638,434,846.35 = 231,417,630.90 : x
  2. Step 2: Convert to fraction form
    425,917,163.70/638,434,846.35 = 231,417,630.90/x
  3. Step 3: Cross multiply
    425,917,163.70x = 638,434,846.35 × 231,417,630.90
  4. Step 4: Simplify right side
    425,917,163.70x = 147,745,079,626,322,528
  5. Step 5: Solve for x
    x = 147,745,079,626,322,528/425,917,163.70
  6. Step 6: Final answer
    x = 346,886,888.39

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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.