Home / 806,668,200.30-1,210,002,300.45-398,521,512.30

Finding the Fourth Proportional to 806,668,200.30, 1,210,002,300.45 and 398,521,512.30

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Solution

The fourth proportional to 806,668,200.30, 1,210,002,300.45 and 398,521,512.30 is: 597,782,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,668,200.30 : 1,210,002,300.45 = 398,521,512.30 : x
  2. Step 2: Convert to fraction form
    806,668,200.30/1,210,002,300.45 = 398,521,512.30/x
  3. Step 3: Cross multiply
    806,668,200.30x = 1,210,002,300.45 × 398,521,512.30
  4. Step 4: Simplify right side
    806,668,200.30x = 482,211,946,661,812,992
  5. Step 5: Solve for x
    x = 482,211,946,661,812,992/806,668,200.30
  6. Step 6: Final answer
    x = 597,782,268.45

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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.