Home / 15,247,631.68-21,042,418.08-9,135,928.96

Finding the Fourth Proportional to 15,247,631.68, 21,042,418.08 and 9,135,928.96

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Solution

The fourth proportional to 15,247,631.68, 21,042,418.08 and 9,135,928.96 is: 12,607,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247,631.68 : 21,042,418.08 = 9,135,928.96 : x
  2. Step 2: Convert to fraction form
    15,247,631.68/21,042,418.08 = 9,135,928.96/x
  3. Step 3: Cross multiply
    15,247,631.68x = 21,042,418.08 × 9,135,928.96
  4. Step 4: Simplify right side
    15,247,631.68x = 192,242,036,725,499.59
  5. Step 5: Solve for x
    x = 192,242,036,725,499.59/15,247,631.68
  6. Step 6: Final answer
    x = 12,607,993.21

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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.