Home / 30,151,383.84-45,209,890.80-20,578,350.24

Finding the Fourth Proportional to 30,151,383.84, 45,209,890.80 and 20,578,350.24

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Solution

The fourth proportional to 30,151,383.84, 45,209,890.80 and 20,578,350.24 is: 30,855,796.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151,383.84 : 45,209,890.80 = 20,578,350.24 : x
  2. Step 2: Convert to fraction form
    30,151,383.84/45,209,890.80 = 20,578,350.24/x
  3. Step 3: Cross multiply
    30,151,383.84x = 45,209,890.80 × 20,578,350.24
  4. Step 4: Simplify right side
    30,151,383.84x = 930,344,967,194,553.62
  5. Step 5: Solve for x
    x = 930,344,967,194,553.62/30,151,383.84
  6. Step 6: Final answer
    x = 30,855,796.61

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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.