Home / 850,633,745.90-1,275,950,618.85-305,304,421.10

Finding the Fourth Proportional to 850,633,745.90, 1,275,950,618.85 and 305,304,421.10

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Solution

The fourth proportional to 850,633,745.90, 1,275,950,618.85 and 305,304,421.10 is: 457,956,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,633,745.90 : 1,275,950,618.85 = 305,304,421.10 : x
  2. Step 2: Convert to fraction form
    850,633,745.90/1,275,950,618.85 = 305,304,421.10/x
  3. Step 3: Cross multiply
    850,633,745.90x = 1,275,950,618.85 × 305,304,421.10
  4. Step 4: Simplify right side
    850,633,745.90x = 389,553,365,040,185,984
  5. Step 5: Solve for x
    x = 389,553,365,040,185,984/850,633,745.90
  6. Step 6: Final answer
    x = 457,956,631.65

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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.