Home / 120,290,552.40-166,001,122.48-65,286,408.88

Finding the Fourth Proportional to 120,290,552.40, 166,001,122.48 and 65,286,408.88

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Solution

The fourth proportional to 120,290,552.40, 166,001,122.48 and 65,286,408.88 is: 90,095,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,290,552.40 : 166,001,122.48 = 65,286,408.88 : x
  2. Step 2: Convert to fraction form
    120,290,552.40/166,001,122.48 = 65,286,408.88/x
  3. Step 3: Cross multiply
    120,290,552.40x = 166,001,122.48 × 65,286,408.88
  4. Step 4: Simplify right side
    120,290,552.40x = 10,837,617,156,768,240
  5. Step 5: Solve for x
    x = 10,837,617,156,768,240/120,290,552.40
  6. Step 6: Final answer
    x = 90,095,331.18

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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.