Home / 309,577,868.59-427,204,564.81-168,449,643.22

Finding the Fourth Proportional to 309,577,868.59, 427,204,564.81 and 168,449,643.22

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Solution

The fourth proportional to 309,577,868.59, 427,204,564.81 and 168,449,643.22 is: 232,453,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,577,868.59 : 427,204,564.81 = 168,449,643.22 : x
  2. Step 2: Convert to fraction form
    309,577,868.59/427,204,564.81 = 168,449,643.22/x
  3. Step 3: Cross multiply
    309,577,868.59x = 427,204,564.81 × 168,449,643.22
  4. Step 4: Simplify right side
    309,577,868.59x = 71,962,456,524,199,864
  5. Step 5: Solve for x
    x = 71,962,456,524,199,864/309,577,868.59
  6. Step 6: Final answer
    x = 232,453,491.76

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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.