Home / 20,805,812.31-31,208,074.98-9,883,864.17

Finding the Fourth Proportional to 20,805,812.31, 31,208,074.98 and 9,883,864.17

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Solution

The fourth proportional to 20,805,812.31, 31,208,074.98 and 9,883,864.17 is: 14,825,490.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,805,812.31 : 31,208,074.98 = 9,883,864.17 : x
  2. Step 2: Convert to fraction form
    20,805,812.31/31,208,074.98 = 9,883,864.17/x
  3. Step 3: Cross multiply
    20,805,812.31x = 31,208,074.98 × 9,883,864.17
  4. Step 4: Simplify right side
    20,805,812.31x = 308,456,374,109,495.44
  5. Step 5: Solve for x
    x = 308,456,374,109,495.44/20,805,812.31
  6. Step 6: Final answer
    x = 14,825,490.57

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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.