Home / 80,009,999.20-120,014,998.80-26,162,754.40

Finding the Fourth Proportional to 80,009,999.20, 120,014,998.80 and 26,162,754.40

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Solution

The fourth proportional to 80,009,999.20, 120,014,998.80 and 26,162,754.40 is: 39,244,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,009,999.20 : 120,014,998.80 = 26,162,754.40 : x
  2. Step 2: Convert to fraction form
    80,009,999.20/120,014,998.80 = 26,162,754.40/x
  3. Step 3: Cross multiply
    80,009,999.20x = 120,014,998.80 × 26,162,754.40
  4. Step 4: Simplify right side
    80,009,999.20x = 3,139,922,937,920,694.50
  5. Step 5: Solve for x
    x = 3,139,922,937,920,694.50/80,009,999.20
  6. Step 6: Final answer
    x = 39,244,131.60

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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.