Home / 980,981,061.80-1,471,220,738.94-290,727,314.60

Finding the Fourth Proportional to 980,981,061.80, 1,471,220,738.94 and 290,727,314.60

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Solution

The fourth proportional to 980,981,061.80, 1,471,220,738.94 and 290,727,314.60 is: 436,016,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,981,061.80 : 1,471,220,738.94 = 290,727,314.60 : x
  2. Step 2: Convert to fraction form
    980,981,061.80/1,471,220,738.94 = 290,727,314.60/x
  3. Step 3: Cross multiply
    980,981,061.80x = 1,471,220,738.94 × 290,727,314.60
  4. Step 4: Simplify right side
    980,981,061.80x = 427,724,054,615,853,888
  5. Step 5: Solve for x
    x = 427,724,054,615,853,888/980,981,061.80
  6. Step 6: Final answer
    x = 436,016,627.92

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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.