Home / 412,968,549.76-619,546,148.59-136,619,110.40

Finding the Fourth Proportional to 412,968,549.76, 619,546,148.59 and 136,619,110.40

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Solution

The fourth proportional to 412,968,549.76, 619,546,148.59 and 136,619,110.40 is: 204,959,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,968,549.76 : 619,546,148.59 = 136,619,110.40 : x
  2. Step 2: Convert to fraction form
    412,968,549.76/619,546,148.59 = 136,619,110.40/x
  3. Step 3: Cross multiply
    412,968,549.76x = 619,546,148.59 × 136,619,110.40
  4. Step 4: Simplify right side
    412,968,549.76x = 84,641,843,669,293,840
  5. Step 5: Solve for x
    x = 84,641,843,669,293,840/412,968,549.76
  6. Step 6: Final answer
    x = 204,959,539.21

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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.