Home / 18,581,279.40-27,871,919.10-5,118,107.40

Finding the Fourth Proportional to 18,581,279.40, 27,871,919.10 and 5,118,107.40

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Solution

The fourth proportional to 18,581,279.40, 27,871,919.10 and 5,118,107.40 is: 7,677,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581,279.40 : 27,871,919.10 = 5,118,107.40 : x
  2. Step 2: Convert to fraction form
    18,581,279.40/27,871,919.10 = 5,118,107.40/x
  3. Step 3: Cross multiply
    18,581,279.40x = 27,871,919.10 × 5,118,107.40
  4. Step 4: Simplify right side
    18,581,279.40x = 142,651,475,397,911.34
  5. Step 5: Solve for x
    x = 142,651,475,397,911.34/18,581,279.40
  6. Step 6: Final answer
    x = 7,677,161.10

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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.