Home / 300,303,206.80-450,454,810.20-127,785,648.40

Finding the Fourth Proportional to 300,303,206.80, 450,454,810.20 and 127,785,648.40

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Solution

The fourth proportional to 300,303,206.80, 450,454,810.20 and 127,785,648.40 is: 191,678,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,303,206.80 : 450,454,810.20 = 127,785,648.40 : x
  2. Step 2: Convert to fraction form
    300,303,206.80/450,454,810.20 = 127,785,648.40/x
  3. Step 3: Cross multiply
    300,303,206.80x = 450,454,810.20 × 127,785,648.40
  4. Step 4: Simplify right side
    300,303,206.80x = 57,561,659,996,305,936
  5. Step 5: Solve for x
    x = 57,561,659,996,305,936/300,303,206.80
  6. Step 6: Final answer
    x = 191,678,472.60

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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.