Home / 1,120,082,997.60-1,679,620,611.60-429,760,821.60

Finding the Fourth Proportional to 1,120,082,997.60, 1,679,620,611.60 and 429,760,821.60

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Solution

The fourth proportional to 1,120,082,997.60, 1,679,620,611.60 and 429,760,821.60 is: 644,447,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,082,997.60 : 1,679,620,611.60 = 429,760,821.60 : x
  2. Step 2: Convert to fraction form
    1,120,082,997.60/1,679,620,611.60 = 429,760,821.60/x
  3. Step 3: Cross multiply
    1,120,082,997.60x = 1,679,620,611.60 × 429,760,821.60
  4. Step 4: Simplify right side
    1,120,082,997.60x = 721,835,134,017,510,528
  5. Step 5: Solve for x
    x = 721,835,134,017,510,528/1,120,082,997.60
  6. Step 6: Final answer
    x = 644,447,898.56

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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.