Home / 517,218,987,246.20-713,658,683,641.18-288,813,085,620.22

Finding the Fourth Proportional to 517,218,987,246.20, 713,658,683,641.18 and 288,813,085,620.22

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Solution

The fourth proportional to 517,218,987,246.20, 713,658,683,641.18 and 288,813,085,620.22 is: 398,504,253,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,218,987,246.20 : 713,658,683,641.18 = 288,813,085,620.22 : x
  2. Step 2: Convert to fraction form
    517,218,987,246.20/713,658,683,641.18 = 288,813,085,620.22/x
  3. Step 3: Cross multiply
    517,218,987,246.20x = 713,658,683,641.18 × 288,813,085,620.22
  4. Step 4: Simplify right side
    517,218,987,246.20x = 206,113,966,502,073,608,437,760
  5. Step 5: Solve for x
    x = 206,113,966,502,073,608,437,760/517,218,987,246.20
  6. Step 6: Final answer
    x = 398,504,253,680.78

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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.