Home / 28,441,474.80-39,248,955.79-15,388,447.31

Finding the Fourth Proportional to 28,441,474.80, 39,248,955.79 and 15,388,447.31

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Solution

The fourth proportional to 28,441,474.80, 39,248,955.79 and 15,388,447.31 is: 21,235,906.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441,474.80 : 39,248,955.79 = 15,388,447.31 : x
  2. Step 2: Convert to fraction form
    28,441,474.80/39,248,955.79 = 15,388,447.31/x
  3. Step 3: Cross multiply
    28,441,474.80x = 39,248,955.79 × 15,388,447.31
  4. Step 4: Simplify right side
    28,441,474.80x = 603,980,488,145,962.12
  5. Step 5: Solve for x
    x = 603,980,488,145,962.12/28,441,474.80
  6. Step 6: Final answer
    x = 21,235,906.10

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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.