Home / 315,105,664.60-473,145,101.70-171,778,432.60

Finding the Fourth Proportional to 315,105,664.60, 473,145,101.70 and 171,778,432.60

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Solution

The fourth proportional to 315,105,664.60, 473,145,101.70 and 171,778,432.60 is: 257,932,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,105,664.60 : 473,145,101.70 = 171,778,432.60 : x
  2. Step 2: Convert to fraction form
    315,105,664.60/473,145,101.70 = 171,778,432.60/x
  3. Step 3: Cross multiply
    315,105,664.60x = 473,145,101.70 × 171,778,432.60
  4. Step 4: Simplify right side
    315,105,664.60x = 81,276,123,962,393,584
  5. Step 5: Solve for x
    x = 81,276,123,962,393,584/315,105,664.60
  6. Step 6: Final answer
    x = 257,932,919.31

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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.