Home / 20,160,970.80-30,241,456.20-11,657,914.80

Finding the Fourth Proportional to 20,160,970.80, 30,241,456.20 and 11,657,914.80

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Solution

The fourth proportional to 20,160,970.80, 30,241,456.20 and 11,657,914.80 is: 17,486,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,970.80 : 30,241,456.20 = 11,657,914.80 : x
  2. Step 2: Convert to fraction form
    20,160,970.80/30,241,456.20 = 11,657,914.80/x
  3. Step 3: Cross multiply
    20,160,970.80x = 30,241,456.20 × 11,657,914.80
  4. Step 4: Simplify right side
    20,160,970.80x = 352,552,319,807,531.75
  5. Step 5: Solve for x
    x = 352,552,319,807,531.75/20,160,970.80
  6. Step 6: Final answer
    x = 17,486,872.20

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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.