Home / 99,496,753,310.70-149,245,129,966.05-81,830,379,012.30

Finding the Fourth Proportional to 99,496,753,310.70, 149,245,129,966.05 and 81,830,379,012.30

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Solution

The fourth proportional to 99,496,753,310.70, 149,245,129,966.05 and 81,830,379,012.30 is: 122,745,568,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,496,753,310.70 : 149,245,129,966.05 = 81,830,379,012.30 : x
  2. Step 2: Convert to fraction form
    99,496,753,310.70/149,245,129,966.05 = 81,830,379,012.30/x
  3. Step 3: Cross multiply
    99,496,753,310.70x = 149,245,129,966.05 × 81,830,379,012.30
  4. Step 4: Simplify right side
    99,496,753,310.70x = 12,212,785,550,861,843,562,496
  5. Step 5: Solve for x
    x = 12,212,785,550,861,843,562,496/99,496,753,310.70
  6. Step 6: Final answer
    x = 122,745,568,518.45

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Double scale
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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.