Home / 659,892,156.46-990,079,625.12-620,907,969.77

Finding the Fourth Proportional to 659,892,156.46, 990,079,625.12 and 620,907,969.77

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Solution

The fourth proportional to 659,892,156.46, 990,079,625.12 and 620,907,969.77 is: 931,589,084.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,892,156.46 : 990,079,625.12 = 620,907,969.77 : x
  2. Step 2: Convert to fraction form
    659,892,156.46/990,079,625.12 = 620,907,969.77/x
  3. Step 3: Cross multiply
    659,892,156.46x = 990,079,625.12 × 620,907,969.77
  4. Step 4: Simplify right side
    659,892,156.46x = 614,748,329,947,929,344
  5. Step 5: Solve for x
    x = 614,748,329,947,929,344/659,892,156.46
  6. Step 6: Final answer
    x = 931,589,084.56

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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.