Home / 238,976,229.42-358,528,135.59-85,637,786.22

Finding the Fourth Proportional to 238,976,229.42, 358,528,135.59 and 85,637,786.22

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Solution

The fourth proportional to 238,976,229.42, 358,528,135.59 and 85,637,786.22 is: 128,479,539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,976,229.42 : 358,528,135.59 = 85,637,786.22 : x
  2. Step 2: Convert to fraction form
    238,976,229.42/358,528,135.59 = 85,637,786.22/x
  3. Step 3: Cross multiply
    238,976,229.42x = 358,528,135.59 × 85,637,786.22
  4. Step 4: Simplify right side
    238,976,229.42x = 30,703,555,829,511,592
  5. Step 5: Solve for x
    x = 30,703,555,829,511,592/238,976,229.42
  6. Step 6: Final answer
    x = 128,479,539.17

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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.