Home / 300,303,556.80-450,455,335.20-127,785,998.40

Finding the Fourth Proportional to 300,303,556.80, 450,455,335.20 and 127,785,998.40

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Solution

The fourth proportional to 300,303,556.80, 450,455,335.20 and 127,785,998.40 is: 191,678,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,303,556.80 : 450,455,335.20 = 127,785,998.40 : x
  2. Step 2: Convert to fraction form
    300,303,556.80/450,455,335.20 = 127,785,998.40/x
  3. Step 3: Cross multiply
    300,303,556.80x = 450,455,335.20 × 127,785,998.40
  4. Step 4: Simplify right side
    300,303,556.80x = 57,561,884,743,138,664
  5. Step 5: Solve for x
    x = 57,561,884,743,138,664/300,303,556.80
  6. Step 6: Final answer
    x = 191,678,997.60

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1.5x scale

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.