Home / 13,878,747-19,162,773.18-11,140,496.64

Finding the Fourth Proportional to 13,878,747, 19,162,773.18 and 11,140,496.64

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Solution

The fourth proportional to 13,878,747, 19,162,773.18 and 11,140,496.64 is: 15,381,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878,747 : 19,162,773.18 = 11,140,496.64 : x
  2. Step 2: Convert to fraction form
    13,878,747/19,162,773.18 = 11,140,496.64/x
  3. Step 3: Cross multiply
    13,878,747x = 19,162,773.18 × 11,140,496.64
  4. Step 4: Simplify right side
    13,878,747x = 213,482,810,224,872.12
  5. Step 5: Solve for x
    x = 213,482,810,224,872.12/13,878,747
  6. Step 6: Final answer
    x = 15,381,994.51

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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.