Home / 15,340,399.30-21,152,585.10-12,540,784.56

Finding the Fourth Proportional to 15,340,399.30, 21,152,585.10 and 12,540,784.56

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Solution

The fourth proportional to 15,340,399.30, 21,152,585.10 and 12,540,784.56 is: 17,292,249.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340,399.30 : 21,152,585.10 = 12,540,784.56 : x
  2. Step 2: Convert to fraction form
    15,340,399.30/21,152,585.10 = 12,540,784.56/x
  3. Step 3: Cross multiply
    15,340,399.30x = 21,152,585.10 × 12,540,784.56
  4. Step 4: Simplify right side
    15,340,399.30x = 265,270,012,626,166.09
  5. Step 5: Solve for x
    x = 265,270,012,626,166.09/15,340,399.30
  6. Step 6: Final answer
    x = 17,292,249.53

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1.5x scale

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.