Home / 13,293,872.16-18,345,556.56-7,182,305.52

Finding the Fourth Proportional to 13,293,872.16, 18,345,556.56 and 7,182,305.52

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Solution

The fourth proportional to 13,293,872.16, 18,345,556.56 and 7,182,305.52 is: 9,911,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293,872.16 : 18,345,556.56 = 7,182,305.52 : x
  2. Step 2: Convert to fraction form
    13,293,872.16/18,345,556.56 = 7,182,305.52/x
  3. Step 3: Cross multiply
    13,293,872.16x = 18,345,556.56 × 7,182,305.52
  4. Step 4: Simplify right side
    13,293,872.16x = 131,763,392,148,360.19
  5. Step 5: Solve for x
    x = 131,763,392,148,360.19/13,293,872.16
  6. Step 6: Final answer
    x = 9,911,588.63

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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.