Home / 12,879,087.40-19,318,631.10-11,535,394.60

Finding the Fourth Proportional to 12,879,087.40, 19,318,631.10 and 11,535,394.60

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Solution

The fourth proportional to 12,879,087.40, 19,318,631.10 and 11,535,394.60 is: 17,303,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,087.40 : 19,318,631.10 = 11,535,394.60 : x
  2. Step 2: Convert to fraction form
    12,879,087.40/19,318,631.10 = 11,535,394.60/x
  3. Step 3: Cross multiply
    12,879,087.40x = 19,318,631.10 × 11,535,394.60
  4. Step 4: Simplify right side
    12,879,087.40x = 222,848,032,870,332.06
  5. Step 5: Solve for x
    x = 222,848,032,870,332.06/12,879,087.40
  6. Step 6: Final answer
    x = 17,303,091.90

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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.