Home / 469,329,040.87-647,706,812.37-310,282,834.92

Finding the Fourth Proportional to 469,329,040.87, 647,706,812.37 and 310,282,834.92

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Solution

The fourth proportional to 469,329,040.87, 647,706,812.37 and 310,282,834.92 is: 428,211,954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,329,040.87 : 647,706,812.37 = 310,282,834.92 : x
  2. Step 2: Convert to fraction form
    469,329,040.87/647,706,812.37 = 310,282,834.92/x
  3. Step 3: Cross multiply
    469,329,040.87x = 647,706,812.37 × 310,282,834.92
  4. Step 4: Simplify right side
    469,329,040.87x = 200,972,305,938,189,536
  5. Step 5: Solve for x
    x = 200,972,305,938,189,536/469,329,040.87
  6. Step 6: Final answer
    x = 428,211,954.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.