Home / 852,046,221.90-1,278,069,332.85-392,881,197.90

Finding the Fourth Proportional to 852,046,221.90, 1,278,069,332.85 and 392,881,197.90

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Solution

The fourth proportional to 852,046,221.90, 1,278,069,332.85 and 392,881,197.90 is: 589,321,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,046,221.90 : 1,278,069,332.85 = 392,881,197.90 : x
  2. Step 2: Convert to fraction form
    852,046,221.90/1,278,069,332.85 = 392,881,197.90/x
  3. Step 3: Cross multiply
    852,046,221.90x = 1,278,069,332.85 × 392,881,197.90
  4. Step 4: Simplify right side
    852,046,221.90x = 502,129,410,489,361,728
  5. Step 5: Solve for x
    x = 502,129,410,489,361,728/852,046,221.90
  6. Step 6: Final answer
    x = 589,321,796.85

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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.