Home / 326,431,318.60-489,646,977.90-108,115,355.80

Finding the Fourth Proportional to 326,431,318.60, 489,646,977.90 and 108,115,355.80

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Solution

The fourth proportional to 326,431,318.60, 489,646,977.90 and 108,115,355.80 is: 162,173,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,431,318.60 : 489,646,977.90 = 108,115,355.80 : x
  2. Step 2: Convert to fraction form
    326,431,318.60/489,646,977.90 = 108,115,355.80/x
  3. Step 3: Cross multiply
    326,431,318.60x = 489,646,977.90 × 108,115,355.80
  4. Step 4: Simplify right side
    326,431,318.60x = 52,938,357,232,053,232
  5. Step 5: Solve for x
    x = 52,938,357,232,053,232/326,431,318.60
  6. Step 6: Final answer
    x = 162,173,033.70

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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.