Home / 28,943,313.11-39,942,895.34-15,891,122.15

Finding the Fourth Proportional to 28,943,313.11, 39,942,895.34 and 15,891,122.15

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Solution

The fourth proportional to 28,943,313.11, 39,942,895.34 and 15,891,122.15 is: 21,930,365.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,943,313.11 : 39,942,895.34 = 15,891,122.15 : x
  2. Step 2: Convert to fraction form
    28,943,313.11/39,942,895.34 = 15,891,122.15/x
  3. Step 3: Cross multiply
    28,943,313.11x = 39,942,895.34 × 15,891,122.15
  4. Step 4: Simplify right side
    28,943,313.11x = 634,737,428,872,605.88
  5. Step 5: Solve for x
    x = 634,737,428,872,605.88/28,943,313.11
  6. Step 6: Final answer
    x = 21,930,365.28

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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.