Home / 168,146,703.15-252,292,869.48-90,332,816.70

Finding the Fourth Proportional to 168,146,703.15, 252,292,869.48 and 90,332,816.70

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Solution

The fourth proportional to 168,146,703.15, 252,292,869.48 and 90,332,816.70 is: 135,538,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,146,703.15 : 252,292,869.48 = 90,332,816.70 : x
  2. Step 2: Convert to fraction form
    168,146,703.15/252,292,869.48 = 90,332,816.70/x
  3. Step 3: Cross multiply
    168,146,703.15x = 252,292,869.48 × 90,332,816.70
  4. Step 4: Simplify right side
    168,146,703.15x = 22,790,325,533,453,864
  5. Step 5: Solve for x
    x = 22,790,325,533,453,864/168,146,703.15
  6. Step 6: Final answer
    x = 135,538,343.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.