Home / 38,869,039,367.28-53,639,472,677.94-21,722,178,830.49

Finding the Fourth Proportional to 38,869,039,367.28, 53,639,472,677.94 and 21,722,178,830.49

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Solution

The fourth proportional to 38,869,039,367.28, 53,639,472,677.94 and 21,722,178,830.49 is: 29,976,717,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,869,039,367.28 : 53,639,472,677.94 = 21,722,178,830.49 : x
  2. Step 2: Convert to fraction form
    38,869,039,367.28/53,639,472,677.94 = 21,722,178,830.49/x
  3. Step 3: Cross multiply
    38,869,039,367.28x = 53,639,472,677.94 × 21,722,178,830.49
  4. Step 4: Simplify right side
    38,869,039,367.28x = 1,165,166,217,883,395,162,112
  5. Step 5: Solve for x
    x = 1,165,166,217,883,395,162,112/38,869,039,367.28
  6. Step 6: Final answer
    x = 29,976,717,635.69

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Double scale
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1.5x scale

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.