Home / 13,400,509.88-20,090,965.10-4,297,425.72

Finding the Fourth Proportional to 13,400,509.88, 20,090,965.10 and 4,297,425.72

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Solution

The fourth proportional to 13,400,509.88, 20,090,965.10 and 4,297,425.72 is: 6,442,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400,509.88 : 20,090,965.10 = 4,297,425.72 : x
  2. Step 2: Convert to fraction form
    13,400,509.88/20,090,965.10 = 4,297,425.72/x
  3. Step 3: Cross multiply
    13,400,509.88x = 20,090,965.10 × 4,297,425.72
  4. Step 4: Simplify right side
    13,400,509.88x = 86,339,430,138,875.23
  5. Step 5: Solve for x
    x = 86,339,430,138,875.23/13,400,509.88
  6. Step 6: Final answer
    x = 6,442,995.90

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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.