Home / 13,120,257,128.70-18,106,468,649.27-7,404,741,203.80

Finding the Fourth Proportional to 13,120,257,128.70, 18,106,468,649.27 and 7,404,741,203.80

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Solution

The fourth proportional to 13,120,257,128.70, 18,106,468,649.27 and 7,404,741,203.80 is: 10,218,832,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,257,128.70 : 18,106,468,649.27 = 7,404,741,203.80 : x
  2. Step 2: Convert to fraction form
    13,120,257,128.70/18,106,468,649.27 = 7,404,741,203.80/x
  3. Step 3: Cross multiply
    13,120,257,128.70x = 18,106,468,649.27 × 7,404,741,203.80
  4. Step 4: Simplify right side
    13,120,257,128.70x = 134,073,714,462,562,500,608
  5. Step 5: Solve for x
    x = 134,073,714,462,562,500,608/13,120,257,128.70
  6. Step 6: Final answer
    x = 10,218,832,843.55

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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.