Home / 211,428,194.36-291,895,999.90-133,178,821.56

Finding the Fourth Proportional to 211,428,194.36, 291,895,999.90 and 133,178,821.56

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Solution

The fourth proportional to 211,428,194.36, 291,895,999.90 and 133,178,821.56 is: 183,865,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,428,194.36 : 291,895,999.90 = 133,178,821.56 : x
  2. Step 2: Convert to fraction form
    211,428,194.36/291,895,999.90 = 133,178,821.56/x
  3. Step 3: Cross multiply
    211,428,194.36x = 291,895,999.90 × 133,178,821.56
  4. Step 4: Simplify right side
    211,428,194.36x = 38,874,365,284,759,872
  5. Step 5: Solve for x
    x = 38,874,365,284,759,872/211,428,194.36
  6. Step 6: Final answer
    x = 183,865,569.12

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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.