Home / 28,040,312.80-42,060,469.20-15,905,087.20

Finding the Fourth Proportional to 28,040,312.80, 42,060,469.20 and 15,905,087.20

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Solution

The fourth proportional to 28,040,312.80, 42,060,469.20 and 15,905,087.20 is: 23,857,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,312.80 : 42,060,469.20 = 15,905,087.20 : x
  2. Step 2: Convert to fraction form
    28,040,312.80/42,060,469.20 = 15,905,087.20/x
  3. Step 3: Cross multiply
    28,040,312.80x = 42,060,469.20 × 15,905,087.20
  4. Step 4: Simplify right side
    28,040,312.80x = 668,975,430,298,914.25
  5. Step 5: Solve for x
    x = 668,975,430,298,914.25/28,040,312.80
  6. Step 6: Final answer
    x = 23,857,630.80

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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.