Home / 309,577,868.65-427,204,564.90-168,449,643.28

Finding the Fourth Proportional to 309,577,868.65, 427,204,564.90 and 168,449,643.28

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Solution

The fourth proportional to 309,577,868.65, 427,204,564.90 and 168,449,643.28 is: 232,453,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,577,868.65 : 427,204,564.90 = 168,449,643.28 : x
  2. Step 2: Convert to fraction form
    309,577,868.65/427,204,564.90 = 168,449,643.28/x
  3. Step 3: Cross multiply
    309,577,868.65x = 427,204,564.90 × 168,449,643.28
  4. Step 4: Simplify right side
    309,577,868.65x = 71,962,456,564,150,360
  5. Step 5: Solve for x
    x = 71,962,456,564,150,360/309,577,868.65
  6. Step 6: Final answer
    x = 232,453,491.84

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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.