Home / 12,618,935.80-18,928,403.70-7,567,646.20

Finding the Fourth Proportional to 12,618,935.80, 18,928,403.70 and 7,567,646.20

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Solution

The fourth proportional to 12,618,935.80, 18,928,403.70 and 7,567,646.20 is: 11,351,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,935.80 : 18,928,403.70 = 7,567,646.20 : x
  2. Step 2: Convert to fraction form
    12,618,935.80/18,928,403.70 = 7,567,646.20/x
  3. Step 3: Cross multiply
    12,618,935.80x = 18,928,403.70 × 7,567,646.20
  4. Step 4: Simplify right side
    12,618,935.80x = 143,243,462,332,370.94
  5. Step 5: Solve for x
    x = 143,243,462,332,370.94/12,618,935.80
  6. Step 6: Final answer
    x = 11,351,469.30

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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.