Home / 81,995,877,754.88-122,962,018,856.09-28,202,784,995.04

Finding the Fourth Proportional to 81,995,877,754.88, 122,962,018,856.09 and 28,202,784,995.04

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Solution

The fourth proportional to 81,995,877,754.88, 122,962,018,856.09 and 28,202,784,995.04 is: 42,293,240,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,995,877,754.88 : 122,962,018,856.09 = 28,202,784,995.04 : x
  2. Step 2: Convert to fraction form
    81,995,877,754.88/122,962,018,856.09 = 28,202,784,995.04/x
  3. Step 3: Cross multiply
    81,995,877,754.88x = 122,962,018,856.09 × 28,202,784,995.04
  4. Step 4: Simplify right side
    81,995,877,754.88x = 3,467,871,380,354,360,672,256
  5. Step 5: Solve for x
    x = 3,467,871,380,354,360,672,256/81,995,877,754.88
  6. Step 6: Final answer
    x = 42,293,240,529.98

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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.