Home / 820,861,467.15-1,132,789,438.47-444,518,467.47

Finding the Fourth Proportional to 820,861,467.15, 1,132,789,438.47 and 444,518,467.47

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Solution

The fourth proportional to 820,861,467.15, 1,132,789,438.47 and 444,518,467.47 is: 613,435,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,861,467.15 : 1,132,789,438.47 = 444,518,467.47 : x
  2. Step 2: Convert to fraction form
    820,861,467.15/1,132,789,438.47 = 444,518,467.47/x
  3. Step 3: Cross multiply
    820,861,467.15x = 1,132,789,438.47 × 444,518,467.47
  4. Step 4: Simplify right side
    820,861,467.15x = 503,545,825,154,886,336
  5. Step 5: Solve for x
    x = 503,545,825,154,886,336/820,861,467.15
  6. Step 6: Final answer
    x = 613,435,817.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.