Home / 21,066,489.28-31,599,733.54-5,920,420.78

Finding the Fourth Proportional to 21,066,489.28, 31,599,733.54 and 5,920,420.78

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Solution

The fourth proportional to 21,066,489.28, 31,599,733.54 and 5,920,420.78 is: 8,880,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066,489.28 : 31,599,733.54 = 5,920,420.78 : x
  2. Step 2: Convert to fraction form
    21,066,489.28/31,599,733.54 = 5,920,420.78/x
  3. Step 3: Cross multiply
    21,066,489.28x = 31,599,733.54 × 5,920,420.78
  4. Step 4: Simplify right side
    21,066,489.28x = 187,083,719,092,678.97
  5. Step 5: Solve for x
    x = 187,083,719,092,678.97/21,066,489.28
  6. Step 6: Final answer
    x = 8,880,631.06

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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.