Home / 2,128,051.20-3,192,465.60-866,006.40

Finding the Fourth Proportional to 2,128,051.20, 3,192,465.60 and 866,006.40

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Solution

The fourth proportional to 2,128,051.20, 3,192,465.60 and 866,006.40 is: 1,299,167.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,051.20 : 3,192,465.60 = 866,006.40 : x
  2. Step 2: Convert to fraction form
    2,128,051.20/3,192,465.60 = 866,006.40/x
  3. Step 3: Cross multiply
    2,128,051.20x = 3,192,465.60 × 866,006.40
  4. Step 4: Simplify right side
    2,128,051.20x = 2,764,695,641,379.84
  5. Step 5: Solve for x
    x = 2,764,695,641,379.84/2,128,051.20
  6. Step 6: Final answer
    x = 1,299,167.82

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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.