Home / 28,679,394.36-39,577,065.84-15,626,760.52

Finding the Fourth Proportional to 28,679,394.36, 39,577,065.84 and 15,626,760.52

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Solution

The fourth proportional to 28,679,394.36, 39,577,065.84 and 15,626,760.52 is: 21,564,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679,394.36 : 39,577,065.84 = 15,626,760.52 : x
  2. Step 2: Convert to fraction form
    28,679,394.36/39,577,065.84 = 15,626,760.52/x
  3. Step 3: Cross multiply
    28,679,394.36x = 39,577,065.84 × 15,626,760.52
  4. Step 4: Simplify right side
    28,679,394.36x = 618,461,329,965,952.62
  5. Step 5: Solve for x
    x = 618,461,329,965,952.62/28,679,394.36
  6. Step 6: Final answer
    x = 21,564,657.96

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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.