Home / 80,109,004.80-120,163,507.20-53,182,660.80

Finding the Fourth Proportional to 80,109,004.80, 120,163,507.20 and 53,182,660.80

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Solution

The fourth proportional to 80,109,004.80, 120,163,507.20 and 53,182,660.80 is: 79,773,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109,004.80 : 120,163,507.20 = 53,182,660.80 : x
  2. Step 2: Convert to fraction form
    80,109,004.80/120,163,507.20 = 53,182,660.80/x
  3. Step 3: Cross multiply
    80,109,004.80x = 120,163,507.20 × 53,182,660.80
  4. Step 4: Simplify right side
    80,109,004.80x = 6,390,615,043,955,958
  5. Step 5: Solve for x
    x = 6,390,615,043,955,958/80,109,004.80
  6. Step 6: Final answer
    x = 79,773,991.20

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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.