Home / 525,120,340.68-787,816,700.98-279,274,815.54

Finding the Fourth Proportional to 525,120,340.68, 787,816,700.98 and 279,274,815.54

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Solution

The fourth proportional to 525,120,340.68, 787,816,700.98 and 279,274,815.54 is: 418,984,653.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,120,340.68 : 787,816,700.98 = 279,274,815.54 : x
  2. Step 2: Convert to fraction form
    525,120,340.68/787,816,700.98 = 279,274,815.54/x
  3. Step 3: Cross multiply
    525,120,340.68x = 787,816,700.98 × 279,274,815.54
  4. Step 4: Simplify right side
    525,120,340.68x = 220,017,363,844,822,656
  5. Step 5: Solve for x
    x = 220,017,363,844,822,656/525,120,340.68
  6. Step 6: Final answer
    x = 418,984,653.23

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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.