Home / 120,290,385-166,000,821.06-65,286,226.92

Finding the Fourth Proportional to 120,290,385, 166,000,821.06 and 65,286,226.92

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Solution

The fourth proportional to 120,290,385, 166,000,821.06 and 65,286,226.92 is: 90,095,041.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,290,385 : 166,000,821.06 = 65,286,226.92 : x
  2. Step 2: Convert to fraction form
    120,290,385/166,000,821.06 = 65,286,226.92/x
  3. Step 3: Cross multiply
    120,290,385x = 166,000,821.06 × 65,286,226.92
  4. Step 4: Simplify right side
    120,290,385x = 10,837,567,272,629,476
  5. Step 5: Solve for x
    x = 10,837,567,272,629,476/120,290,385
  6. Step 6: Final answer
    x = 90,095,041.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.