Home / 426,990,105.65-589,241,989.36-238,817,950.33

Finding the Fourth Proportional to 426,990,105.65, 589,241,989.36 and 238,817,950.33

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Solution

The fourth proportional to 426,990,105.65, 589,241,989.36 and 238,817,950.33 is: 329,566,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,990,105.65 : 589,241,989.36 = 238,817,950.33 : x
  2. Step 2: Convert to fraction form
    426,990,105.65/589,241,989.36 = 238,817,950.33/x
  3. Step 3: Cross multiply
    426,990,105.65x = 589,241,989.36 × 238,817,950.33
  4. Step 4: Simplify right side
    426,990,105.65x = 140,721,564,148,919,344
  5. Step 5: Solve for x
    x = 140,721,564,148,919,344/426,990,105.65
  6. Step 6: Final answer
    x = 329,566,334.88

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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.