Home / 385,370,361.52-531,719,949.89-218,106,622.68

Finding the Fourth Proportional to 385,370,361.52, 531,719,949.89 and 218,106,622.68

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Solution

The fourth proportional to 385,370,361.52, 531,719,949.89 and 218,106,622.68 is: 300,935,552.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,370,361.52 : 531,719,949.89 = 218,106,622.68 : x
  2. Step 2: Convert to fraction form
    385,370,361.52/531,719,949.89 = 218,106,622.68/x
  3. Step 3: Cross multiply
    385,370,361.52x = 531,719,949.89 × 218,106,622.68
  4. Step 4: Simplify right side
    385,370,361.52x = 115,971,642,482,086,736
  5. Step 5: Solve for x
    x = 115,971,642,482,086,736/385,370,361.52
  6. Step 6: Final answer
    x = 300,935,552.04

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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.