Home / 163,334,129.20-245,001,193.80-81,704,791.60

Finding the Fourth Proportional to 163,334,129.20, 245,001,193.80 and 81,704,791.60

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Solution

The fourth proportional to 163,334,129.20, 245,001,193.80 and 81,704,791.60 is: 122,557,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,334,129.20 : 245,001,193.80 = 81,704,791.60 : x
  2. Step 2: Convert to fraction form
    163,334,129.20/245,001,193.80 = 81,704,791.60/x
  3. Step 3: Cross multiply
    163,334,129.20x = 245,001,193.80 × 81,704,791.60
  4. Step 4: Simplify right side
    163,334,129.20x = 20,017,771,481,180,212
  5. Step 5: Solve for x
    x = 20,017,771,481,180,212/163,334,129.20
  6. Step 6: Final answer
    x = 122,557,187.40

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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.