Home / 30,881,439-46,322,159.94-21,156,462.36

Finding the Fourth Proportional to 30,881,439, 46,322,159.94 and 21,156,462.36

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Solution

The fourth proportional to 30,881,439, 46,322,159.94 and 21,156,462.36 is: 31,734,694.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881,439 : 46,322,159.94 = 21,156,462.36 : x
  2. Step 2: Convert to fraction form
    30,881,439/46,322,159.94 = 21,156,462.36/x
  3. Step 3: Cross multiply
    30,881,439x = 46,322,159.94 × 21,156,462.36
  4. Step 4: Simplify right side
    30,881,439x = 980,013,033,204,509.75
  5. Step 5: Solve for x
    x = 980,013,033,204,509.75/30,881,439
  6. Step 6: Final answer
    x = 31,734,694.53

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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.