Home / 8,507,109.40-12,749,000.10-5,465,138.20

Finding the Fourth Proportional to 8,507,109.40, 12,749,000.10 and 5,465,138.20

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Solution

The fourth proportional to 8,507,109.40, 12,749,000.10 and 5,465,138.20 is: 8,190,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507,109.40 : 12,749,000.10 = 5,465,138.20 : x
  2. Step 2: Convert to fraction form
    8,507,109.40/12,749,000.10 = 5,465,138.20/x
  3. Step 3: Cross multiply
    8,507,109.40x = 12,749,000.10 × 5,465,138.20
  4. Step 4: Simplify right side
    8,507,109.40x = 69,675,047,458,313.82
  5. Step 5: Solve for x
    x = 69,675,047,458,313.82/8,507,109.40
  6. Step 6: Final answer
    x = 8,190,214.11

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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.