Home / 252,392,308.80-378,623,892.60-79,851,130.80

Finding the Fourth Proportional to 252,392,308.80, 378,623,892.60 and 79,851,130.80

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Solution

The fourth proportional to 252,392,308.80, 378,623,892.60 and 79,851,130.80 is: 119,787,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,392,308.80 : 378,623,892.60 = 79,851,130.80 : x
  2. Step 2: Convert to fraction form
    252,392,308.80/378,623,892.60 = 79,851,130.80/x
  3. Step 3: Cross multiply
    252,392,308.80x = 378,623,892.60 × 79,851,130.80
  4. Step 4: Simplify right side
    252,392,308.80x = 30,233,545,972,007,752
  5. Step 5: Solve for x
    x = 30,233,545,972,007,752/252,392,308.80
  6. Step 6: Final answer
    x = 119,787,905.25

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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.