Home / 419,849,620.40-629,862,904.20-177,387,719.60

Finding the Fourth Proportional to 419,849,620.40, 629,862,904.20 and 177,387,719.60

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Solution

The fourth proportional to 419,849,620.40, 629,862,904.20 and 177,387,719.60 is: 266,118,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,849,620.40 : 629,862,904.20 = 177,387,719.60 : x
  2. Step 2: Convert to fraction form
    419,849,620.40/629,862,904.20 = 177,387,719.60/x
  3. Step 3: Cross multiply
    419,849,620.40x = 629,862,904.20 × 177,387,719.60
  4. Step 4: Simplify right side
    419,849,620.40x = 111,729,944,236,671,264
  5. Step 5: Solve for x
    x = 111,729,944,236,671,264/419,849,620.40
  6. Step 6: Final answer
    x = 266,118,959.76

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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.