Home / 28,266,101.76-39,007,226.88-15,389,045.76

Finding the Fourth Proportional to 28,266,101.76, 39,007,226.88 and 15,389,045.76

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Solution

The fourth proportional to 28,266,101.76, 39,007,226.88 and 15,389,045.76 is: 21,236,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266,101.76 : 39,007,226.88 = 15,389,045.76 : x
  2. Step 2: Convert to fraction form
    28,266,101.76/39,007,226.88 = 15,389,045.76/x
  3. Step 3: Cross multiply
    28,266,101.76x = 39,007,226.88 × 15,389,045.76
  4. Step 4: Simplify right side
    28,266,101.76x = 600,283,999,427,022
  5. Step 5: Solve for x
    x = 600,283,999,427,022/28,266,101.76
  6. Step 6: Final answer
    x = 21,236,886.66

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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.