Home / 308,947,125.72-426,354,721.41-167,818,301.76

Finding the Fourth Proportional to 308,947,125.72, 426,354,721.41 and 167,818,301.76

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Solution

The fourth proportional to 308,947,125.72, 426,354,721.41 and 167,818,301.76 is: 231,593,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,947,125.72 : 426,354,721.41 = 167,818,301.76 : x
  2. Step 2: Convert to fraction form
    308,947,125.72/426,354,721.41 = 167,818,301.76/x
  3. Step 3: Cross multiply
    308,947,125.72x = 426,354,721.41 × 167,818,301.76
  4. Step 4: Simplify right side
    308,947,125.72x = 71,550,125,294,384,112
  5. Step 5: Solve for x
    x = 71,550,125,294,384,112/308,947,125.72
  6. Step 6: Final answer
    x = 231,593,432.46

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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.