Home / 699,779,139.30-1,049,262,611.13-331,310,998.20

Finding the Fourth Proportional to 699,779,139.30, 1,049,262,611.13 and 331,310,998.20

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Solution

The fourth proportional to 699,779,139.30, 1,049,262,611.13 and 331,310,998.20 is: 496,774,229.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,779,139.30 : 1,049,262,611.13 = 331,310,998.20 : x
  2. Step 2: Convert to fraction form
    699,779,139.30/1,049,262,611.13 = 331,310,998.20/x
  3. Step 3: Cross multiply
    699,779,139.30x = 1,049,262,611.13 × 331,310,998.20
  4. Step 4: Simplify right side
    699,779,139.30x = 347,632,243,067,418,688
  5. Step 5: Solve for x
    x = 347,632,243,067,418,688/699,779,139.30
  6. Step 6: Final answer
    x = 496,774,229.96

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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.