Home / 315,105,419.60-473,144,734.20-171,778,187.60

Finding the Fourth Proportional to 315,105,419.60, 473,144,734.20 and 171,778,187.60

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Solution

The fourth proportional to 315,105,419.60, 473,144,734.20 and 171,778,187.60 is: 257,932,551.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,105,419.60 : 473,144,734.20 = 171,778,187.60 : x
  2. Step 2: Convert to fraction form
    315,105,419.60/473,144,734.20 = 171,778,187.60/x
  3. Step 3: Cross multiply
    315,105,419.60x = 473,144,734.20 × 171,778,187.60
  4. Step 4: Simplify right side
    315,105,419.60x = 81,275,944,913,359,728
  5. Step 5: Solve for x
    x = 81,275,944,913,359,728/315,105,419.60
  6. Step 6: Final answer
    x = 257,932,551.64

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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.