Home / 252,219,889-378,439,055.69-135,499,059.30

Finding the Fourth Proportional to 252,219,889, 378,439,055.69 and 135,499,059.30

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Solution

The fourth proportional to 252,219,889, 378,439,055.69 and 135,499,059.30 is: 203,307,265.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,219,889 : 378,439,055.69 = 135,499,059.30 : x
  2. Step 2: Convert to fraction form
    252,219,889/378,439,055.69 = 135,499,059.30/x
  3. Step 3: Cross multiply
    252,219,889x = 378,439,055.69 × 135,499,059.30
  4. Step 4: Simplify right side
    252,219,889x = 51,278,136,048,375,320
  5. Step 5: Solve for x
    x = 51,278,136,048,375,320/252,219,889
  6. Step 6: Final answer
    x = 203,307,265.94

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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.