Home / 38,512,134,775.20-53,146,808,511.89-21,364,988,497.83

Finding the Fourth Proportional to 38,512,134,775.20, 53,146,808,511.89 and 21,364,988,497.83

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Solution

The fourth proportional to 38,512,134,775.20, 53,146,808,511.89 and 21,364,988,497.83 is: 29,483,718,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512,134,775.20 : 53,146,808,511.89 = 21,364,988,497.83 : x
  2. Step 2: Convert to fraction form
    38,512,134,775.20/53,146,808,511.89 = 21,364,988,497.83/x
  3. Step 3: Cross multiply
    38,512,134,775.20x = 53,146,808,511.89 × 21,364,988,497.83
  4. Step 4: Simplify right side
    38,512,134,775.20x = 1,135,480,952,553,116,008,448
  5. Step 5: Solve for x
    x = 1,135,480,952,553,116,008,448/38,512,134,775.20
  6. Step 6: Final answer
    x = 29,483,718,811.78

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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.