Home / 258,609,124.80-387,913,687.20-161,674,286.40

Finding the Fourth Proportional to 258,609,124.80, 387,913,687.20 and 161,674,286.40

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Solution

The fourth proportional to 258,609,124.80, 387,913,687.20 and 161,674,286.40 is: 242,511,429.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,609,124.80 : 387,913,687.20 = 161,674,286.40 : x
  2. Step 2: Convert to fraction form
    258,609,124.80/387,913,687.20 = 161,674,286.40/x
  3. Step 3: Cross multiply
    258,609,124.80x = 387,913,687.20 × 161,674,286.40
  4. Step 4: Simplify right side
    258,609,124.80x = 62,715,668,562,852,816
  5. Step 5: Solve for x
    x = 62,715,668,562,852,816/258,609,124.80
  6. Step 6: Final answer
    x = 242,511,429.60

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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.