Home / 432,072,615.35-648,054,255.05-136,970,579.68

Finding the Fourth Proportional to 432,072,615.35, 648,054,255.05 and 136,970,579.68

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Solution

The fourth proportional to 432,072,615.35, 648,054,255.05 and 136,970,579.68 is: 205,438,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,072,615.35 : 648,054,255.05 = 136,970,579.68 : x
  2. Step 2: Convert to fraction form
    432,072,615.35/648,054,255.05 = 136,970,579.68/x
  3. Step 3: Cross multiply
    432,072,615.35x = 648,054,255.05 × 136,970,579.68
  4. Step 4: Simplify right side
    432,072,615.35x = 88,764,366,976,501,824
  5. Step 5: Solve for x
    x = 88,764,366,976,501,824/432,072,615.35
  6. Step 6: Final answer
    x = 205,438,539.32

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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.