Home / 12,382,651.20-18,537,235.20-9,201,878.40

Finding the Fourth Proportional to 12,382,651.20, 18,537,235.20 and 9,201,878.40

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Solution

The fourth proportional to 12,382,651.20, 18,537,235.20 and 9,201,878.40 is: 13,775,513.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382,651.20 : 18,537,235.20 = 9,201,878.40 : x
  2. Step 2: Convert to fraction form
    12,382,651.20/18,537,235.20 = 9,201,878.40/x
  3. Step 3: Cross multiply
    12,382,651.20x = 18,537,235.20 × 9,201,878.40
  4. Step 4: Simplify right side
    12,382,651.20x = 170,577,384,182,599.69
  5. Step 5: Solve for x
    x = 170,577,384,182,599.69/12,382,651.20
  6. Step 6: Final answer
    x = 13,775,513.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.