Home / 210,138,645.72-315,401,732.34-106,580,531.64

Finding the Fourth Proportional to 210,138,645.72, 315,401,732.34 and 106,580,531.64

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Solution

The fourth proportional to 210,138,645.72, 315,401,732.34 and 106,580,531.64 is: 159,969,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,138,645.72 : 315,401,732.34 = 106,580,531.64 : x
  2. Step 2: Convert to fraction form
    210,138,645.72/315,401,732.34 = 106,580,531.64/x
  3. Step 3: Cross multiply
    210,138,645.72x = 315,401,732.34 × 106,580,531.64
  4. Step 4: Simplify right side
    210,138,645.72x = 33,615,684,312,974,180
  5. Step 5: Solve for x
    x = 33,615,684,312,974,180/210,138,645.72
  6. Step 6: Final answer
    x = 159,969,072.79

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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.