Home / 12,135,614.40-18,203,421.60-7,340,835.60

Finding the Fourth Proportional to 12,135,614.40, 18,203,421.60 and 7,340,835.60

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Solution

The fourth proportional to 12,135,614.40, 18,203,421.60 and 7,340,835.60 is: 11,011,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135,614.40 : 18,203,421.60 = 7,340,835.60 : x
  2. Step 2: Convert to fraction form
    12,135,614.40/18,203,421.60 = 7,340,835.60/x
  3. Step 3: Cross multiply
    12,135,614.40x = 18,203,421.60 × 7,340,835.60
  4. Step 4: Simplify right side
    12,135,614.40x = 133,628,325,323,088.97
  5. Step 5: Solve for x
    x = 133,628,325,323,088.97/12,135,614.40
  6. Step 6: Final answer
    x = 11,011,253.40

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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.