Home / 252,242,783.10-378,364,174.65-211,428,114.30

Finding the Fourth Proportional to 252,242,783.10, 378,364,174.65 and 211,428,114.30

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Solution

The fourth proportional to 252,242,783.10, 378,364,174.65 and 211,428,114.30 is: 317,142,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,242,783.10 : 378,364,174.65 = 211,428,114.30 : x
  2. Step 2: Convert to fraction form
    252,242,783.10/378,364,174.65 = 211,428,114.30/x
  3. Step 3: Cross multiply
    252,242,783.10x = 378,364,174.65 × 211,428,114.30
  4. Step 4: Simplify right side
    252,242,783.10x = 79,996,823,964,925,360
  5. Step 5: Solve for x
    x = 79,996,823,964,925,360/252,242,783.10
  6. Step 6: Final answer
    x = 317,142,171.45

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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.