Home / 312,696,822.48-431,573,344.86-173,512,424.52

Finding the Fourth Proportional to 312,696,822.48, 431,573,344.86 and 173,512,424.52

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Solution

The fourth proportional to 312,696,822.48, 431,573,344.86 and 173,512,424.52 is: 239,475,850.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,696,822.48 : 431,573,344.86 = 173,512,424.52 : x
  2. Step 2: Convert to fraction form
    312,696,822.48/431,573,344.86 = 173,512,424.52/x
  3. Step 3: Cross multiply
    312,696,822.48x = 431,573,344.86 × 173,512,424.52
  4. Step 4: Simplify right side
    312,696,822.48x = 74,883,337,424,864,688
  5. Step 5: Solve for x
    x = 74,883,337,424,864,688/312,696,822.48
  6. Step 6: Final answer
    x = 239,475,850.22

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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.