Home / 209,515,722.60-314,078,168.73-71,246,842.98

Finding the Fourth Proportional to 209,515,722.60, 314,078,168.73 and 71,246,842.98

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Solution

The fourth proportional to 209,515,722.60, 314,078,168.73 and 71,246,842.98 is: 106,803,812.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,515,722.60 : 314,078,168.73 = 71,246,842.98 : x
  2. Step 2: Convert to fraction form
    209,515,722.60/314,078,168.73 = 71,246,842.98/x
  3. Step 3: Cross multiply
    209,515,722.60x = 314,078,168.73 × 71,246,842.98
  4. Step 4: Simplify right side
    209,515,722.60x = 22,377,077,970,952,260
  5. Step 5: Solve for x
    x = 22,377,077,970,952,260/209,515,722.60
  6. Step 6: Final answer
    x = 106,803,812.59

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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.