Home / 99,642,206.80-149,463,310.20-61,179,000.40

Finding the Fourth Proportional to 99,642,206.80, 149,463,310.20 and 61,179,000.40

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Solution

The fourth proportional to 99,642,206.80, 149,463,310.20 and 61,179,000.40 is: 91,768,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642,206.80 : 149,463,310.20 = 61,179,000.40 : x
  2. Step 2: Convert to fraction form
    99,642,206.80/149,463,310.20 = 61,179,000.40/x
  3. Step 3: Cross multiply
    99,642,206.80x = 149,463,310.20 × 61,179,000.40
  4. Step 4: Simplify right side
    99,642,206.80x = 9,144,015,914,511,124
  5. Step 5: Solve for x
    x = 9,144,015,914,511,124/99,642,206.80
  6. Step 6: Final answer
    x = 91,768,500.60

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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.