Home / 38,869,039,362.45-53,639,472,671.16-21,722,178,825.57

Finding the Fourth Proportional to 38,869,039,362.45, 53,639,472,671.16 and 21,722,178,825.57

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Solution

The fourth proportional to 38,869,039,362.45, 53,639,472,671.16 and 21,722,178,825.57 is: 29,976,717,628.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,869,039,362.45 : 53,639,472,671.16 = 21,722,178,825.57 : x
  2. Step 2: Convert to fraction form
    38,869,039,362.45/53,639,472,671.16 = 21,722,178,825.57/x
  3. Step 3: Cross multiply
    38,869,039,362.45x = 53,639,472,671.16 × 21,722,178,825.57
  4. Step 4: Simplify right side
    38,869,039,362.45x = 1,165,166,217,472,212,467,712
  5. Step 5: Solve for x
    x = 1,165,166,217,472,212,467,712/38,869,039,362.45
  6. Step 6: Final answer
    x = 29,976,717,628.83

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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.