Home / 509,969,475.40-765,269,141.10-203,229,603.40

Finding the Fourth Proportional to 509,969,475.40, 765,269,141.10 and 203,229,603.40

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Solution

The fourth proportional to 509,969,475.40, 765,269,141.10 and 203,229,603.40 is: 304,969,908.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,969,475.40 : 765,269,141.10 = 203,229,603.40 : x
  2. Step 2: Convert to fraction form
    509,969,475.40/765,269,141.10 = 203,229,603.40/x
  3. Step 3: Cross multiply
    509,969,475.40x = 765,269,141.10 × 203,229,603.40
  4. Step 4: Simplify right side
    509,969,475.40x = 155,525,344,040,011,648
  5. Step 5: Solve for x
    x = 155,525,344,040,011,648/509,969,475.40
  6. Step 6: Final answer
    x = 304,969,908.09

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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.