Home / 291,316,665.33-436,680,557.82-125,428,376.61

Finding the Fourth Proportional to 291,316,665.33, 436,680,557.82 and 125,428,376.61

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Solution

The fourth proportional to 291,316,665.33, 436,680,557.82 and 125,428,376.61 is: 188,015,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,316,665.33 : 436,680,557.82 = 125,428,376.61 : x
  2. Step 2: Convert to fraction form
    291,316,665.33/436,680,557.82 = 125,428,376.61/x
  3. Step 3: Cross multiply
    291,316,665.33x = 436,680,557.82 × 125,428,376.61
  4. Step 4: Simplify right side
    291,316,665.33x = 54,772,133,464,511,840
  5. Step 5: Solve for x
    x = 54,772,133,464,511,840/291,316,665.33
  6. Step 6: Final answer
    x = 188,015,791.69

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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.