Home / 28,427,384.94-39,229,790.94-15,374,643.48

Finding the Fourth Proportional to 28,427,384.94, 39,229,790.94 and 15,374,643.48

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Solution

The fourth proportional to 28,427,384.94, 39,229,790.94 and 15,374,643.48 is: 21,217,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427,384.94 : 39,229,790.94 = 15,374,643.48 : x
  2. Step 2: Convert to fraction form
    28,427,384.94/39,229,790.94 = 15,374,643.48/x
  3. Step 3: Cross multiply
    28,427,384.94x = 39,229,790.94 × 15,374,643.48
  4. Step 4: Simplify right side
    28,427,384.94x = 603,144,049,497,434
  5. Step 5: Solve for x
    x = 603,144,049,497,434/28,427,384.94
  6. Step 6: Final answer
    x = 21,217,007.85

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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.