Home / 30,813,975.90-42,522,763.89-17,062,644.78

Finding the Fourth Proportional to 30,813,975.90, 42,522,763.89 and 17,062,644.78

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Solution

The fourth proportional to 30,813,975.90, 42,522,763.89 and 17,062,644.78 is: 23,546,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813,975.90 : 42,522,763.89 = 17,062,644.78 : x
  2. Step 2: Convert to fraction form
    30,813,975.90/42,522,763.89 = 17,062,644.78/x
  3. Step 3: Cross multiply
    30,813,975.90x = 42,522,763.89 × 17,062,644.78
  4. Step 4: Simplify right side
    30,813,975.90x = 725,550,815,318,881
  5. Step 5: Solve for x
    x = 725,550,815,318,881/30,813,975.90
  6. Step 6: Final answer
    x = 23,546,160.28

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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.