Home / 3,870,910.88-5,341,877.79-2,128,692.62

Finding the Fourth Proportional to 3,870,910.88, 5,341,877.79 and 2,128,692.62

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Solution

The fourth proportional to 3,870,910.88, 5,341,877.79 and 2,128,692.62 is: 2,937,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,910.88 : 5,341,877.79 = 2,128,692.62 : x
  2. Step 2: Convert to fraction form
    3,870,910.88/5,341,877.79 = 2,128,692.62/x
  3. Step 3: Cross multiply
    3,870,910.88x = 5,341,877.79 × 2,128,692.62
  4. Step 4: Simplify right side
    3,870,910.88x = 11,371,215,828,514.91
  5. Step 5: Solve for x
    x = 11,371,215,828,514.91/3,870,910.88
  6. Step 6: Final answer
    x = 2,937,607.24

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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.