Home / 18,667,577.40-28,005,302.70-7,879,325.10

Finding the Fourth Proportional to 18,667,577.40, 28,005,302.70 and 7,879,325.10

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Solution

The fourth proportional to 18,667,577.40, 28,005,302.70 and 7,879,325.10 is: 11,820,649.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667,577.40 : 28,005,302.70 = 7,879,325.10 : x
  2. Step 2: Convert to fraction form
    18,667,577.40/28,005,302.70 = 7,879,325.10/x
  3. Step 3: Cross multiply
    18,667,577.40x = 28,005,302.70 × 7,879,325.10
  4. Step 4: Simplify right side
    18,667,577.40x = 220,662,884,497,207.75
  5. Step 5: Solve for x
    x = 220,662,884,497,207.75/18,667,577.40
  6. Step 6: Final answer
    x = 11,820,649.23

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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.