Home / 129,400,974,812.20-194,101,462,218.30-84,510,885,749.80

Finding the Fourth Proportional to 129,400,974,812.20, 194,101,462,218.30 and 84,510,885,749.80

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Solution

The fourth proportional to 129,400,974,812.20, 194,101,462,218.30 and 84,510,885,749.80 is: 126,766,328,624.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,400,974,812.20 : 194,101,462,218.30 = 84,510,885,749.80 : x
  2. Step 2: Convert to fraction form
    129,400,974,812.20/194,101,462,218.30 = 84,510,885,749.80/x
  3. Step 3: Cross multiply
    129,400,974,812.20x = 194,101,462,218.30 × 84,510,885,749.80
  4. Step 4: Simplify right side
    129,400,974,812.20x = 16,403,686,497,399,871,635,456
  5. Step 5: Solve for x
    x = 16,403,686,497,399,871,635,456/129,400,974,812.20
  6. Step 6: Final answer
    x = 126,766,328,624.70

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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.