Home / 299,236,122.40-448,742,209.20-105,072,512.80

Finding the Fourth Proportional to 299,236,122.40, 448,742,209.20 and 105,072,512.80

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Solution

The fourth proportional to 299,236,122.40, 448,742,209.20 and 105,072,512.80 is: 157,569,450.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,236,122.40 : 448,742,209.20 = 105,072,512.80 : x
  2. Step 2: Convert to fraction form
    299,236,122.40/448,742,209.20 = 105,072,512.80/x
  3. Step 3: Cross multiply
    299,236,122.40x = 448,742,209.20 × 105,072,512.80
  4. Step 4: Simplify right side
    299,236,122.40x = 47,150,471,520,067,272
  5. Step 5: Solve for x
    x = 47,150,471,520,067,272/299,236,122.40
  6. Step 6: Final answer
    x = 157,569,450.98

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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.