Home / 21,174,541,008.20-29,221,390,591.30-11,529,799,718.82

Finding the Fourth Proportional to 21,174,541,008.20, 29,221,390,591.30 and 11,529,799,718.82

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Solution

The fourth proportional to 21,174,541,008.20, 29,221,390,591.30 and 11,529,799,718.82 is: 15,911,408,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174,541,008.20 : 29,221,390,591.30 = 11,529,799,718.82 : x
  2. Step 2: Convert to fraction form
    21,174,541,008.20/29,221,390,591.30 = 11,529,799,718.82/x
  3. Step 3: Cross multiply
    21,174,541,008.20x = 29,221,390,591.30 × 11,529,799,718.82
  4. Step 4: Simplify right side
    21,174,541,008.20x = 336,916,781,023,100,141,568
  5. Step 5: Solve for x
    x = 336,916,781,023,100,141,568/21,174,541,008.20
  6. Step 6: Final answer
    x = 15,911,408,936.45

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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.