Home / 120,365,839.02-166,102,485.39-70,811,568.30

Finding the Fourth Proportional to 120,365,839.02, 166,102,485.39 and 70,811,568.30

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Solution

The fourth proportional to 120,365,839.02, 166,102,485.39 and 70,811,568.30 is: 97,718,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,365,839.02 : 166,102,485.39 = 70,811,568.30 : x
  2. Step 2: Convert to fraction form
    120,365,839.02/166,102,485.39 = 70,811,568.30/x
  3. Step 3: Cross multiply
    120,365,839.02x = 166,102,485.39 × 70,811,568.30
  4. Step 4: Simplify right side
    120,365,839.02x = 11,761,977,488,993,736
  5. Step 5: Solve for x
    x = 11,761,977,488,993,736/120,365,839.02
  6. Step 6: Final answer
    x = 97,718,568.53

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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.