Home / 28,870,261.48-39,840,959.92-15,818,014.88

Finding the Fourth Proportional to 28,870,261.48, 39,840,959.92 and 15,818,014.88

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Solution

The fourth proportional to 28,870,261.48, 39,840,959.92 and 15,818,014.88 is: 21,828,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870,261.48 : 39,840,959.92 = 15,818,014.88 : x
  2. Step 2: Convert to fraction form
    28,870,261.48/39,840,959.92 = 15,818,014.88/x
  3. Step 3: Cross multiply
    28,870,261.48x = 39,840,959.92 × 15,818,014.88
  4. Step 4: Simplify right side
    28,870,261.48x = 630,204,896,848,043.62
  5. Step 5: Solve for x
    x = 630,204,896,848,043.62/28,870,261.48
  6. Step 6: Final answer
    x = 21,828,860.03

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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.