Home / 28,191,575.80-42,259,370.10-13,019,044.60

Finding the Fourth Proportional to 28,191,575.80, 42,259,370.10 and 13,019,044.60

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Solution

The fourth proportional to 28,191,575.80, 42,259,370.10 and 13,019,044.60 is: 19,515,639.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191,575.80 : 42,259,370.10 = 13,019,044.60 : x
  2. Step 2: Convert to fraction form
    28,191,575.80/42,259,370.10 = 13,019,044.60/x
  3. Step 3: Cross multiply
    28,191,575.80x = 42,259,370.10 × 13,019,044.60
  4. Step 4: Simplify right side
    28,191,575.80x = 550,176,624,099,806.44
  5. Step 5: Solve for x
    x = 550,176,624,099,806.44/28,191,575.80
  6. Step 6: Final answer
    x = 19,515,639.28

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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.