Home / 258,976,387.40-388,464,581.10-177,347,049.80

Finding the Fourth Proportional to 258,976,387.40, 388,464,581.10 and 177,347,049.80

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Solution

The fourth proportional to 258,976,387.40, 388,464,581.10 and 177,347,049.80 is: 266,020,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,976,387.40 : 388,464,581.10 = 177,347,049.80 : x
  2. Step 2: Convert to fraction form
    258,976,387.40/388,464,581.10 = 177,347,049.80/x
  3. Step 3: Cross multiply
    258,976,387.40x = 388,464,581.10 × 177,347,049.80
  4. Step 4: Simplify right side
    258,976,387.40x = 68,893,047,409,877,848
  5. Step 5: Solve for x
    x = 68,893,047,409,877,848/258,976,387.40
  6. Step 6: Final answer
    x = 266,020,574.70

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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.