Home / 218,123,815.68-301,000,360.32-118,998,662.40

Finding the Fourth Proportional to 218,123,815.68, 301,000,360.32 and 118,998,662.40

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Solution

The fourth proportional to 218,123,815.68, 301,000,360.32 and 118,998,662.40 is: 164,212,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,123,815.68 : 301,000,360.32 = 118,998,662.40 : x
  2. Step 2: Convert to fraction form
    218,123,815.68/301,000,360.32 = 118,998,662.40/x
  3. Step 3: Cross multiply
    218,123,815.68x = 301,000,360.32 × 118,998,662.40
  4. Step 4: Simplify right side
    218,123,815.68x = 35,818,640,259,998,036
  5. Step 5: Solve for x
    x = 35,818,640,259,998,036/218,123,815.68
  6. Step 6: Final answer
    x = 164,212,422.88

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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.