Home / 28,438,828.71-39,285,760.55-22,630,178.58

Finding the Fourth Proportional to 28,438,828.71, 39,285,760.55 and 22,630,178.58

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Solution

The fourth proportional to 28,438,828.71, 39,285,760.55 and 22,630,178.58 is: 31,261,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438,828.71 : 39,285,760.55 = 22,630,178.58 : x
  2. Step 2: Convert to fraction form
    28,438,828.71/39,285,760.55 = 22,630,178.58/x
  3. Step 3: Cross multiply
    28,438,828.71x = 39,285,760.55 × 22,630,178.58
  4. Step 4: Simplify right side
    28,438,828.71x = 889,043,776,897,618.88
  5. Step 5: Solve for x
    x = 889,043,776,897,618.88/28,438,828.71
  6. Step 6: Final answer
    x = 31,261,617.21

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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.