Home / 13,135,090.60-19,702,635.90-12,239,295.40

Finding the Fourth Proportional to 13,135,090.60, 19,702,635.90 and 12,239,295.40

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Solution

The fourth proportional to 13,135,090.60, 19,702,635.90 and 12,239,295.40 is: 18,358,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,090.60 : 19,702,635.90 = 12,239,295.40 : x
  2. Step 2: Convert to fraction form
    13,135,090.60/19,702,635.90 = 12,239,295.40/x
  3. Step 3: Cross multiply
    13,135,090.60x = 19,702,635.90 × 12,239,295.40
  4. Step 4: Simplify right side
    13,135,090.60x = 241,146,380,938,744.84
  5. Step 5: Solve for x
    x = 241,146,380,938,744.84/13,135,090.60
  6. Step 6: Final answer
    x = 18,358,943.10

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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.