Home / 300,303,480.30-450,455,220.45-127,785,921.90

Finding the Fourth Proportional to 300,303,480.30, 450,455,220.45 and 127,785,921.90

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Solution

The fourth proportional to 300,303,480.30, 450,455,220.45 and 127,785,921.90 is: 191,678,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,303,480.30 : 450,455,220.45 = 127,785,921.90 : x
  2. Step 2: Convert to fraction form
    300,303,480.30/450,455,220.45 = 127,785,921.90/x
  3. Step 3: Cross multiply
    300,303,480.30x = 450,455,220.45 × 127,785,921.90
  4. Step 4: Simplify right side
    300,303,480.30x = 57,561,835,619,870,984
  5. Step 5: Solve for x
    x = 57,561,835,619,870,984/300,303,480.30
  6. Step 6: Final answer
    x = 191,678,882.85

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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.