Home / 220,313,359,576.42-330,620,993,434.16-76,892,387,784.10

Finding the Fourth Proportional to 220,313,359,576.42, 330,620,993,434.16 and 76,892,387,784.10

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Solution

The fourth proportional to 220,313,359,576.42, 330,620,993,434.16 and 76,892,387,784.10 is: 115,391,266,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,313,359,576.42 : 330,620,993,434.16 = 76,892,387,784.10 : x
  2. Step 2: Convert to fraction form
    220,313,359,576.42/330,620,993,434.16 = 76,892,387,784.10/x
  3. Step 3: Cross multiply
    220,313,359,576.42x = 330,620,993,434.16 × 76,892,387,784.10
  4. Step 4: Simplify right side
    220,313,359,576.42x = 25,422,237,636,703,811,534,848
  5. Step 5: Solve for x
    x = 25,422,237,636,703,811,534,848/220,313,359,576.42
  6. Step 6: Final answer
    x = 115,391,266,719.28

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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.