Home / 852,119,964.30-1,278,179,946.45-489,322,908.30

Finding the Fourth Proportional to 852,119,964.30, 1,278,179,946.45 and 489,322,908.30

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Solution

The fourth proportional to 852,119,964.30, 1,278,179,946.45 and 489,322,908.30 is: 733,984,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,119,964.30 : 1,278,179,946.45 = 489,322,908.30 : x
  2. Step 2: Convert to fraction form
    852,119,964.30/1,278,179,946.45 = 489,322,908.30/x
  3. Step 3: Cross multiply
    852,119,964.30x = 1,278,179,946.45 × 489,322,908.30
  4. Step 4: Simplify right side
    852,119,964.30x = 625,442,728,727,652,352
  5. Step 5: Solve for x
    x = 625,442,728,727,652,352/852,119,964.30
  6. Step 6: Final answer
    x = 733,984,362.45

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1.5x scale

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.