Home / 5,381,939.40-8,072,909.28-2,187,314.91

Finding the Fourth Proportional to 5,381,939.40, 8,072,909.28 and 2,187,314.91

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Solution

The fourth proportional to 5,381,939.40, 8,072,909.28 and 2,187,314.91 is: 3,280,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381,939.40 : 8,072,909.28 = 2,187,314.91 : x
  2. Step 2: Convert to fraction form
    5,381,939.40/8,072,909.28 = 2,187,314.91/x
  3. Step 3: Cross multiply
    5,381,939.40x = 8,072,909.28 × 2,187,314.91
  4. Step 4: Simplify right side
    5,381,939.40x = 17,657,994,835,221.37
  5. Step 5: Solve for x
    x = 17,657,994,835,221.37/5,381,939.40
  6. Step 6: Final answer
    x = 3,280,972.44

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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.