Home / 106,288,051.20-159,432,076.80-80,589,926.40

Finding the Fourth Proportional to 106,288,051.20, 159,432,076.80 and 80,589,926.40

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Solution

The fourth proportional to 106,288,051.20, 159,432,076.80 and 80,589,926.40 is: 120,884,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,288,051.20 : 159,432,076.80 = 80,589,926.40 : x
  2. Step 2: Convert to fraction form
    106,288,051.20/159,432,076.80 = 80,589,926.40/x
  3. Step 3: Cross multiply
    106,288,051.20x = 159,432,076.80 × 80,589,926.40
  4. Step 4: Simplify right side
    106,288,051.20x = 12,848,619,335,111,150
  5. Step 5: Solve for x
    x = 12,848,619,335,111,150/106,288,051.20
  6. Step 6: Final answer
    x = 120,884,889.60

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1.5x scale

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.