Home / 13,702,089.97-18,908,883.62-7,507,371.78

Finding the Fourth Proportional to 13,702,089.97, 18,908,883.62 and 7,507,371.78

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Solution

The fourth proportional to 13,702,089.97, 18,908,883.62 and 7,507,371.78 is: 10,360,172.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702,089.97 : 18,908,883.62 = 7,507,371.78 : x
  2. Step 2: Convert to fraction form
    13,702,089.97/18,908,883.62 = 7,507,371.78/x
  3. Step 3: Cross multiply
    13,702,089.97x = 18,908,883.62 × 7,507,371.78
  4. Step 4: Simplify right side
    13,702,089.97x = 141,956,019,280,092.25
  5. Step 5: Solve for x
    x = 141,956,019,280,092.25/13,702,089.97
  6. Step 6: Final answer
    x = 10,360,172.76

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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.