Home / 12,724,412.40-19,086,618.60-7,685,564.40

Finding the Fourth Proportional to 12,724,412.40, 19,086,618.60 and 7,685,564.40

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Solution

The fourth proportional to 12,724,412.40, 19,086,618.60 and 7,685,564.40 is: 11,528,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724,412.40 : 19,086,618.60 = 7,685,564.40 : x
  2. Step 2: Convert to fraction form
    12,724,412.40/19,086,618.60 = 7,685,564.40/x
  3. Step 3: Cross multiply
    12,724,412.40x = 19,086,618.60 × 7,685,564.40
  4. Step 4: Simplify right side
    12,724,412.40x = 146,691,436,428,537.84
  5. Step 5: Solve for x
    x = 146,691,436,428,537.84/12,724,412.40
  6. Step 6: Final answer
    x = 11,528,346.60

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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.