Home / 300,355,340.40-450,533,010.60-279,310,276.80

Finding the Fourth Proportional to 300,355,340.40, 450,533,010.60 and 279,310,276.80

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Solution

The fourth proportional to 300,355,340.40, 450,533,010.60 and 279,310,276.80 is: 418,965,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,355,340.40 : 450,533,010.60 = 279,310,276.80 : x
  2. Step 2: Convert to fraction form
    300,355,340.40/450,533,010.60 = 279,310,276.80/x
  3. Step 3: Cross multiply
    300,355,340.40x = 450,533,010.60 × 279,310,276.80
  4. Step 4: Simplify right side
    300,355,340.40x = 125,838,499,898,223,344
  5. Step 5: Solve for x
    x = 125,838,499,898,223,344/300,355,340.40
  6. Step 6: Final answer
    x = 418,965,415.20

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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.