Home / 354,521,083-489,320,724.68-207,890,606.20

Finding the Fourth Proportional to 354,521,083, 489,320,724.68 and 207,890,606.20

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Solution

The fourth proportional to 354,521,083, 489,320,724.68 and 207,890,606.20 is: 286,936,904.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,521,083 : 489,320,724.68 = 207,890,606.20 : x
  2. Step 2: Convert to fraction form
    354,521,083/489,320,724.68 = 207,890,606.20/x
  3. Step 3: Cross multiply
    354,521,083x = 489,320,724.68 × 207,890,606.20
  4. Step 4: Simplify right side
    354,521,083x = 101,725,182,079,948,496
  5. Step 5: Solve for x
    x = 101,725,182,079,948,496/354,521,083
  6. Step 6: Final answer
    x = 286,936,904.34

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1.5x scale

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.