Home / 13,415,131.11-20,122,267.62-5,638,165.59

Finding the Fourth Proportional to 13,415,131.11, 20,122,267.62 and 5,638,165.59

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Solution

The fourth proportional to 13,415,131.11, 20,122,267.62 and 5,638,165.59 is: 8,457,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415,131.11 : 20,122,267.62 = 5,638,165.59 : x
  2. Step 2: Convert to fraction form
    13,415,131.11/20,122,267.62 = 5,638,165.59/x
  3. Step 3: Cross multiply
    13,415,131.11x = 20,122,267.62 × 5,638,165.59
  4. Step 4: Simplify right side
    13,415,131.11x = 113,452,676,887,855.20
  5. Step 5: Solve for x
    x = 113,452,676,887,855.20/13,415,131.11
  6. Step 6: Final answer
    x = 8,457,068.06

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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.