Home / 287,676,612.43-396,896,582.55-163,829,601.79

Finding the Fourth Proportional to 287,676,612.43, 396,896,582.55 and 163,829,601.79

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Solution

The fourth proportional to 287,676,612.43, 396,896,582.55 and 163,829,601.79 is: 226,029,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,676,612.43 : 396,896,582.55 = 163,829,601.79 : x
  2. Step 2: Convert to fraction form
    287,676,612.43/396,896,582.55 = 163,829,601.79/x
  3. Step 3: Cross multiply
    287,676,612.43x = 396,896,582.55 × 163,829,601.79
  4. Step 4: Simplify right side
    287,676,612.43x = 65,023,409,070,978,360
  5. Step 5: Solve for x
    x = 65,023,409,070,978,360/287,676,612.43
  6. Step 6: Final answer
    x = 226,029,528.51

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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.