Home / 13,329,588.16-18,395,010.12-7,448,963.88

Finding the Fourth Proportional to 13,329,588.16, 18,395,010.12 and 7,448,963.88

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Solution

The fourth proportional to 13,329,588.16, 18,395,010.12 and 7,448,963.88 is: 10,279,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329,588.16 : 18,395,010.12 = 7,448,963.88 : x
  2. Step 2: Convert to fraction form
    13,329,588.16/18,395,010.12 = 7,448,963.88/x
  3. Step 3: Cross multiply
    13,329,588.16x = 18,395,010.12 × 7,448,963.88
  4. Step 4: Simplify right side
    13,329,588.16x = 137,023,765,956,114.47
  5. Step 5: Solve for x
    x = 137,023,765,956,114.47/13,329,588.16
  6. Step 6: Final answer
    x = 10,279,669.88

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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.