Home / 699,534,998.40-1,049,302,497.60-620,928,969.60

Finding the Fourth Proportional to 699,534,998.40, 1,049,302,497.60 and 620,928,969.60

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Solution

The fourth proportional to 699,534,998.40, 1,049,302,497.60 and 620,928,969.60 is: 931,393,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,534,998.40 : 1,049,302,497.60 = 620,928,969.60 : x
  2. Step 2: Convert to fraction form
    699,534,998.40/1,049,302,497.60 = 620,928,969.60/x
  3. Step 3: Cross multiply
    699,534,998.40x = 1,049,302,497.60 × 620,928,969.60
  4. Step 4: Simplify right side
    699,534,998.40x = 651,542,318,633,474,560
  5. Step 5: Solve for x
    x = 651,542,318,633,474,560/699,534,998.40
  6. Step 6: Final answer
    x = 931,393,454.40

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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.