Home / 258,693,007.80-388,039,511.70-177,063,670.20

Finding the Fourth Proportional to 258,693,007.80, 388,039,511.70 and 177,063,670.20

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Solution

The fourth proportional to 258,693,007.80, 388,039,511.70 and 177,063,670.20 is: 265,595,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,693,007.80 : 388,039,511.70 = 177,063,670.20 : x
  2. Step 2: Convert to fraction form
    258,693,007.80/388,039,511.70 = 177,063,670.20/x
  3. Step 3: Cross multiply
    258,693,007.80x = 388,039,511.70 × 177,063,670.20
  4. Step 4: Simplify right side
    258,693,007.80x = 68,707,700,124,217,832
  5. Step 5: Solve for x
    x = 68,707,700,124,217,832/258,693,007.80
  6. Step 6: Final answer
    x = 265,595,505.30

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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.