Home / 287,482,989.30-396,726,527.04-163,735,180.98

Finding the Fourth Proportional to 287,482,989.30, 396,726,527.04 and 163,735,180.98

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Solution

The fourth proportional to 287,482,989.30, 396,726,527.04 and 163,735,180.98 is: 225,954,550.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,482,989.30 : 396,726,527.04 = 163,735,180.98 : x
  2. Step 2: Convert to fraction form
    287,482,989.30/396,726,527.04 = 163,735,180.98/x
  3. Step 3: Cross multiply
    287,482,989.30x = 396,726,527.04 × 163,735,180.98
  4. Step 4: Simplify right side
    287,482,989.30x = 64,958,089,704,461,264
  5. Step 5: Solve for x
    x = 64,958,089,704,461,264/287,482,989.30
  6. Step 6: Final answer
    x = 225,954,550.78

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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.