Home / 120,185,104.20-180,466,613.10-69,166,768.20

Finding the Fourth Proportional to 120,185,104.20, 180,466,613.10 and 69,166,768.20

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Solution

The fourth proportional to 120,185,104.20, 180,466,613.10 and 69,166,768.20 is: 103,858,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,185,104.20 : 180,466,613.10 = 69,166,768.20 : x
  2. Step 2: Convert to fraction form
    120,185,104.20/180,466,613.10 = 69,166,768.20/x
  3. Step 3: Cross multiply
    120,185,104.20x = 180,466,613.10 × 69,166,768.20
  4. Step 4: Simplify right side
    120,185,104.20x = 12,482,292,396,126,784
  5. Step 5: Solve for x
    x = 12,482,292,396,126,784/120,185,104.20
  6. Step 6: Final answer
    x = 103,858,897.32

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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.