Home / 510,153,768.51-765,352,090.83-165,107,395.50

Finding the Fourth Proportional to 510,153,768.51, 765,352,090.83 and 165,107,395.50

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Solution

The fourth proportional to 510,153,768.51, 765,352,090.83 and 165,107,395.50 is: 247,700,395.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,153,768.51 : 765,352,090.83 = 165,107,395.50 : x
  2. Step 2: Convert to fraction form
    510,153,768.51/765,352,090.83 = 165,107,395.50/x
  3. Step 3: Cross multiply
    510,153,768.51x = 765,352,090.83 × 165,107,395.50
  4. Step 4: Simplify right side
    510,153,768.51x = 126,365,290,355,169,824
  5. Step 5: Solve for x
    x = 126,365,290,355,169,824/510,153,768.51
  6. Step 6: Final answer
    x = 247,700,395.76

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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.