Home / 31,084,996.50-42,897,295.17-18,207,940.50

Finding the Fourth Proportional to 31,084,996.50, 42,897,295.17 and 18,207,940.50

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Solution

The fourth proportional to 31,084,996.50, 42,897,295.17 and 18,207,940.50 is: 25,126,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,084,996.50 : 42,897,295.17 = 18,207,940.50 : x
  2. Step 2: Convert to fraction form
    31,084,996.50/42,897,295.17 = 18,207,940.50/x
  3. Step 3: Cross multiply
    31,084,996.50x = 42,897,295.17 × 18,207,940.50
  4. Step 4: Simplify right side
    31,084,996.50x = 781,071,398,066,297.38
  5. Step 5: Solve for x
    x = 781,071,398,066,297.38/31,084,996.50
  6. Step 6: Final answer
    x = 25,126,957.89

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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.