Home / 99,642,208.80-149,463,313.20-61,179,002.40

Finding the Fourth Proportional to 99,642,208.80, 149,463,313.20 and 61,179,002.40

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Solution

The fourth proportional to 99,642,208.80, 149,463,313.20 and 61,179,002.40 is: 91,768,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642,208.80 : 149,463,313.20 = 61,179,002.40 : x
  2. Step 2: Convert to fraction form
    99,642,208.80/149,463,313.20 = 61,179,002.40/x
  3. Step 3: Cross multiply
    99,642,208.80x = 149,463,313.20 × 61,179,002.40
  4. Step 4: Simplify right side
    99,642,208.80x = 9,144,016,396,974,750
  5. Step 5: Solve for x
    x = 9,144,016,396,974,750/99,642,208.80
  6. Step 6: Final answer
    x = 91,768,503.60

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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.