Home / 638,604,015.60-957,906,023.40-178,541,446.80

Finding the Fourth Proportional to 638,604,015.60, 957,906,023.40 and 178,541,446.80

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Solution

The fourth proportional to 638,604,015.60, 957,906,023.40 and 178,541,446.80 is: 267,812,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,604,015.60 : 957,906,023.40 = 178,541,446.80 : x
  2. Step 2: Convert to fraction form
    638,604,015.60/957,906,023.40 = 178,541,446.80/x
  3. Step 3: Cross multiply
    638,604,015.60x = 957,906,023.40 × 178,541,446.80
  4. Step 4: Simplify right side
    638,604,015.60x = 171,025,927,316,270,656
  5. Step 5: Solve for x
    x = 171,025,927,316,270,656/638,604,015.60
  6. Step 6: Final answer
    x = 267,812,170.20

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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.