Home / 418,364,284.40-627,570,046.20-127,240,904.60

Finding the Fourth Proportional to 418,364,284.40, 627,570,046.20 and 127,240,904.60

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Solution

The fourth proportional to 418,364,284.40, 627,570,046.20 and 127,240,904.60 is: 190,868,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,364,284.40 : 627,570,046.20 = 127,240,904.60 : x
  2. Step 2: Convert to fraction form
    418,364,284.40/627,570,046.20 = 127,240,904.60/x
  3. Step 3: Cross multiply
    418,364,284.40x = 627,570,046.20 × 127,240,904.60
  4. Step 4: Simplify right side
    418,364,284.40x = 79,852,580,378,351,792
  5. Step 5: Solve for x
    x = 79,852,580,378,351,792/418,364,284.40
  6. Step 6: Final answer
    x = 190,868,540.54

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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.