Home / 20,160,656.70-30,240,985.05-7,381,578.30

Finding the Fourth Proportional to 20,160,656.70, 30,240,985.05 and 7,381,578.30

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Solution

The fourth proportional to 20,160,656.70, 30,240,985.05 and 7,381,578.30 is: 11,072,367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,656.70 : 30,240,985.05 = 7,381,578.30 : x
  2. Step 2: Convert to fraction form
    20,160,656.70/30,240,985.05 = 7,381,578.30/x
  3. Step 3: Cross multiply
    20,160,656.70x = 30,240,985.05 × 7,381,578.30
  4. Step 4: Simplify right side
    20,160,656.70x = 223,226,199,015,704.41
  5. Step 5: Solve for x
    x = 223,226,199,015,704.41/20,160,656.70
  6. Step 6: Final answer
    x = 11,072,367.45

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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.