Home / 13,120,257,129.70-18,106,468,650.65-7,404,741,204.80

Finding the Fourth Proportional to 13,120,257,129.70, 18,106,468,650.65 and 7,404,741,204.80

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Solution

The fourth proportional to 13,120,257,129.70, 18,106,468,650.65 and 7,404,741,204.80 is: 10,218,832,844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,257,129.70 : 18,106,468,650.65 = 7,404,741,204.80 : x
  2. Step 2: Convert to fraction form
    13,120,257,129.70/18,106,468,650.65 = 7,404,741,204.80/x
  3. Step 3: Cross multiply
    13,120,257,129.70x = 18,106,468,650.65 × 7,404,741,204.80
  4. Step 4: Simplify right side
    13,120,257,129.70x = 134,073,714,490,887,520,256
  5. Step 5: Solve for x
    x = 134,073,714,490,887,520,256/13,120,257,129.70
  6. Step 6: Final answer
    x = 10,218,832,844.93

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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.