Home / 418,302,419.60-627,453,629.40-188,719,907.60

Finding the Fourth Proportional to 418,302,419.60, 627,453,629.40 and 188,719,907.60

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Solution

The fourth proportional to 418,302,419.60, 627,453,629.40 and 188,719,907.60 is: 283,079,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,302,419.60 : 627,453,629.40 = 188,719,907.60 : x
  2. Step 2: Convert to fraction form
    418,302,419.60/627,453,629.40 = 188,719,907.60/x
  3. Step 3: Cross multiply
    418,302,419.60x = 627,453,629.40 × 188,719,907.60
  4. Step 4: Simplify right side
    418,302,419.60x = 118,412,990,963,652,640
  5. Step 5: Solve for x
    x = 118,412,990,963,652,640/418,302,419.60
  6. Step 6: Final answer
    x = 283,079,861.40

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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.