Home / 42,890,000.80-64,327,628.40-15,949,789.60

Finding the Fourth Proportional to 42,890,000.80, 64,327,628.40 and 15,949,789.60

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Solution

The fourth proportional to 42,890,000.80, 64,327,628.40 and 15,949,789.60 is: 23,921,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,890,000.80 : 64,327,628.40 = 15,949,789.60 : x
  2. Step 2: Convert to fraction form
    42,890,000.80/64,327,628.40 = 15,949,789.60/x
  3. Step 3: Cross multiply
    42,890,000.80x = 64,327,628.40 × 15,949,789.60
  4. Step 4: Simplify right side
    42,890,000.80x = 1,026,012,138,446,984.62
  5. Step 5: Solve for x
    x = 1,026,012,138,446,984.62/42,890,000.80
  6. Step 6: Final answer
    x = 23,921,942.63

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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.