Home / 680,509,824.80-1,020,764,737.20-317,040,922.40

Finding the Fourth Proportional to 680,509,824.80, 1,020,764,737.20 and 317,040,922.40

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Solution

The fourth proportional to 680,509,824.80, 1,020,764,737.20 and 317,040,922.40 is: 475,561,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,509,824.80 : 1,020,764,737.20 = 317,040,922.40 : x
  2. Step 2: Convert to fraction form
    680,509,824.80/1,020,764,737.20 = 317,040,922.40/x
  3. Step 3: Cross multiply
    680,509,824.80x = 1,020,764,737.20 × 317,040,922.40
  4. Step 4: Simplify right side
    680,509,824.80x = 323,624,193,835,281,600
  5. Step 5: Solve for x
    x = 323,624,193,835,281,600/680,509,824.80
  6. Step 6: Final answer
    x = 475,561,383.60

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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.