Home / 266,928,014.40-400,392,021.60-209,597,121.60

Finding the Fourth Proportional to 266,928,014.40, 400,392,021.60 and 209,597,121.60

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Solution

The fourth proportional to 266,928,014.40, 400,392,021.60 and 209,597,121.60 is: 314,395,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,928,014.40 : 400,392,021.60 = 209,597,121.60 : x
  2. Step 2: Convert to fraction form
    266,928,014.40/400,392,021.60 = 209,597,121.60/x
  3. Step 3: Cross multiply
    266,928,014.40x = 400,392,021.60 × 209,597,121.60
  4. Step 4: Simplify right side
    266,928,014.40x = 83,921,015,238,965,024
  5. Step 5: Solve for x
    x = 83,921,015,238,965,024/266,928,014.40
  6. Step 6: Final answer
    x = 314,395,682.40

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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.