Home / 12,442,842.40-18,664,263.60-10,317,078.40

Finding the Fourth Proportional to 12,442,842.40, 18,664,263.60 and 10,317,078.40

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Solution

The fourth proportional to 12,442,842.40, 18,664,263.60 and 10,317,078.40 is: 15,475,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442,842.40 : 18,664,263.60 = 10,317,078.40 : x
  2. Step 2: Convert to fraction form
    12,442,842.40/18,664,263.60 = 10,317,078.40/x
  3. Step 3: Cross multiply
    12,442,842.40x = 18,664,263.60 × 10,317,078.40
  4. Step 4: Simplify right side
    12,442,842.40x = 192,560,670,839,466.25
  5. Step 5: Solve for x
    x = 192,560,670,839,466.25/12,442,842.40
  6. Step 6: Final answer
    x = 15,475,617.60

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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.