Home / 149,194,538.87-205,902,389.39-87,314,926.64

Finding the Fourth Proportional to 149,194,538.87, 205,902,389.39 and 87,314,926.64

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Solution

The fourth proportional to 149,194,538.87, 205,902,389.39 and 87,314,926.64 is: 120,502,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,194,538.87 : 205,902,389.39 = 87,314,926.64 : x
  2. Step 2: Convert to fraction form
    149,194,538.87/205,902,389.39 = 87,314,926.64/x
  3. Step 3: Cross multiply
    149,194,538.87x = 205,902,389.39 × 87,314,926.64
  4. Step 4: Simplify right side
    149,194,538.87x = 17,978,352,023,122,478
  5. Step 5: Solve for x
    x = 17,978,352,023,122,478/149,194,538.87
  6. Step 6: Final answer
    x = 120,502,748.69

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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.