Home / 20,160,961.80-30,241,442.70-11,657,905.80

Finding the Fourth Proportional to 20,160,961.80, 30,241,442.70 and 11,657,905.80

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Solution

The fourth proportional to 20,160,961.80, 30,241,442.70 and 11,657,905.80 is: 17,486,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,961.80 : 30,241,442.70 = 11,657,905.80 : x
  2. Step 2: Convert to fraction form
    20,160,961.80/30,241,442.70 = 11,657,905.80/x
  3. Step 3: Cross multiply
    20,160,961.80x = 30,241,442.70 × 11,657,905.80
  4. Step 4: Simplify right side
    20,160,961.80x = 352,551,890,252,697.69
  5. Step 5: Solve for x
    x = 352,551,890,252,697.69/20,160,961.80
  6. Step 6: Final answer
    x = 17,486,858.70

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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.