Home / 154,601,855.80-231,930,777.30-77,731,430.20

Finding the Fourth Proportional to 154,601,855.80, 231,930,777.30 and 77,731,430.20

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Solution

The fourth proportional to 154,601,855.80, 231,930,777.30 and 77,731,430.20 is: 116,611,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,601,855.80 : 231,930,777.30 = 77,731,430.20 : x
  2. Step 2: Convert to fraction form
    154,601,855.80/231,930,777.30 = 77,731,430.20/x
  3. Step 3: Cross multiply
    154,601,855.80x = 231,930,777.30 × 77,731,430.20
  4. Step 4: Simplify right side
    154,601,855.80x = 18,028,311,026,926,696
  5. Step 5: Solve for x
    x = 18,028,311,026,926,696/154,601,855.80
  6. Step 6: Final answer
    x = 116,611,220.05

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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.