Home / 80,120,006.20-120,180,009.30-55,886,296.60

Finding the Fourth Proportional to 80,120,006.20, 120,180,009.30 and 55,886,296.60

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Solution

The fourth proportional to 80,120,006.20, 120,180,009.30 and 55,886,296.60 is: 83,829,444.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,120,006.20 : 120,180,009.30 = 55,886,296.60 : x
  2. Step 2: Convert to fraction form
    80,120,006.20/120,180,009.30 = 55,886,296.60/x
  3. Step 3: Cross multiply
    80,120,006.20x = 120,180,009.30 × 55,886,296.60
  4. Step 4: Simplify right side
    80,120,006.20x = 6,716,415,645,130,558
  5. Step 5: Solve for x
    x = 6,716,415,645,130,558/80,120,006.20
  6. Step 6: Final answer
    x = 83,829,444.90

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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.