Home / 19,187,960.10-28,781,940.15-7,822,212.90

Finding the Fourth Proportional to 19,187,960.10, 28,781,940.15 and 7,822,212.90

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Solution

The fourth proportional to 19,187,960.10, 28,781,940.15 and 7,822,212.90 is: 11,733,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187,960.10 : 28,781,940.15 = 7,822,212.90 : x
  2. Step 2: Convert to fraction form
    19,187,960.10/28,781,940.15 = 7,822,212.90/x
  3. Step 3: Cross multiply
    19,187,960.10x = 28,781,940.15 × 7,822,212.90
  4. Step 4: Simplify right side
    19,187,960.10x = 225,138,463,528,357.94
  5. Step 5: Solve for x
    x = 225,138,463,528,357.94/19,187,960.10
  6. Step 6: Final answer
    x = 11,733,319.35

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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.