Home / 419,923,041.40-629,884,562.10-266,112,206.20

Finding the Fourth Proportional to 419,923,041.40, 629,884,562.10 and 266,112,206.20

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Solution

The fourth proportional to 419,923,041.40, 629,884,562.10 and 266,112,206.20 is: 399,168,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,923,041.40 : 629,884,562.10 = 266,112,206.20 : x
  2. Step 2: Convert to fraction form
    419,923,041.40/629,884,562.10 = 266,112,206.20/x
  3. Step 3: Cross multiply
    419,923,041.40x = 629,884,562.10 × 266,112,206.20
  4. Step 4: Simplify right side
    419,923,041.40x = 167,619,970,471,751,904
  5. Step 5: Solve for x
    x = 167,619,970,471,751,904/419,923,041.40
  6. Step 6: Final answer
    x = 399,168,309.30

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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.