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Finding the Fourth Proportional to 299,549,807.60, 449,324,711.40 and 251,176,866.80

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Solution

The fourth proportional to 299,549,807.60, 449,324,711.40 and 251,176,866.80 is: 376,765,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,549,807.60 : 449,324,711.40 = 251,176,866.80 : x
  2. Step 2: Convert to fraction form
    299,549,807.60/449,324,711.40 = 251,176,866.80/x
  3. Step 3: Cross multiply
    299,549,807.60x = 449,324,711.40 × 251,176,866.80
  4. Step 4: Simplify right side
    299,549,807.60x = 112,859,973,185,266,240
  5. Step 5: Solve for x
    x = 112,859,973,185,266,240/299,549,807.60
  6. Step 6: Final answer
    x = 376,765,300.20

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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.