Home / 13,631,319.12-18,810,917.64-7,519,746

Finding the Fourth Proportional to 13,631,319.12, 18,810,917.64 and 7,519,746

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Solution

The fourth proportional to 13,631,319.12, 18,810,917.64 and 7,519,746 is: 10,377,082.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,319.12 : 18,810,917.64 = 7,519,746 : x
  2. Step 2: Convert to fraction form
    13,631,319.12/18,810,917.64 = 7,519,746/x
  3. Step 3: Cross multiply
    13,631,319.12x = 18,810,917.64 × 7,519,746
  4. Step 4: Simplify right side
    13,631,319.12x = 141,453,322,679,719.44
  5. Step 5: Solve for x
    x = 141,453,322,679,719.44/13,631,319.12
  6. Step 6: Final answer
    x = 10,377,082.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.