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Finding the Fourth Proportional to 269,888,010.40, 404,832,015.60 and 133,839,114.40

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Solution

The fourth proportional to 269,888,010.40, 404,832,015.60 and 133,839,114.40 is: 200,758,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,888,010.40 : 404,832,015.60 = 133,839,114.40 : x
  2. Step 2: Convert to fraction form
    269,888,010.40/404,832,015.60 = 133,839,114.40/x
  3. Step 3: Cross multiply
    269,888,010.40x = 404,832,015.60 × 133,839,114.40
  4. Step 4: Simplify right side
    269,888,010.40x = 54,182,358,448,670,992
  5. Step 5: Solve for x
    x = 54,182,358,448,670,992/269,888,010.40
  6. Step 6: Final answer
    x = 200,758,671.60

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1.5x scale

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.