Home / 13,702,090.97-18,908,885-7,507,372.78

Finding the Fourth Proportional to 13,702,090.97, 18,908,885 and 7,507,372.78

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Solution

The fourth proportional to 13,702,090.97, 18,908,885 and 7,507,372.78 is: 10,360,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702,090.97 : 18,908,885 = 7,507,372.78 : x
  2. Step 2: Convert to fraction form
    13,702,090.97/18,908,885 = 7,507,372.78/x
  3. Step 3: Cross multiply
    13,702,090.97x = 18,908,885 × 7,507,372.78
  4. Step 4: Simplify right side
    13,702,090.97x = 141,956,048,549,150.31
  5. Step 5: Solve for x
    x = 141,956,048,549,150.31/13,702,090.97
  6. Step 6: Final answer
    x = 10,360,174.14

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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.