Home / 28,863,362.46-39,831,449.14-15,811,091.31

Finding the Fourth Proportional to 28,863,362.46, 39,831,449.14 and 15,811,091.31

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Solution

The fourth proportional to 28,863,362.46, 39,831,449.14 and 15,811,091.31 is: 21,819,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863,362.46 : 39,831,449.14 = 15,811,091.31 : x
  2. Step 2: Convert to fraction form
    28,863,362.46/39,831,449.14 = 15,811,091.31/x
  3. Step 3: Cross multiply
    28,863,362.46x = 39,831,449.14 × 15,811,091.31
  4. Step 4: Simplify right side
    28,863,362.46x = 629,778,679,283,105.50
  5. Step 5: Solve for x
    x = 629,778,679,283,105.50/28,863,362.46
  6. Step 6: Final answer
    x = 21,819,310.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.