Home / 28,752,988.68-39,679,316.52-15,700,338.36

Finding the Fourth Proportional to 28,752,988.68, 39,679,316.52 and 15,700,338.36

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Solution

The fourth proportional to 28,752,988.68, 39,679,316.52 and 15,700,338.36 is: 21,666,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752,988.68 : 39,679,316.52 = 15,700,338.36 : x
  2. Step 2: Convert to fraction form
    28,752,988.68/39,679,316.52 = 15,700,338.36/x
  3. Step 3: Cross multiply
    28,752,988.68x = 39,679,316.52 × 15,700,338.36
  4. Step 4: Simplify right side
    28,752,988.68x = 622,978,695,257,537.75
  5. Step 5: Solve for x
    x = 622,978,695,257,537.75/28,752,988.68
  6. Step 6: Final answer
    x = 21,666,571.85

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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.