Home / 12,768,209.66-19,160,989.59-5,196,553.22

Finding the Fourth Proportional to 12,768,209.66, 19,160,989.59 and 5,196,553.22

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Solution

The fourth proportional to 12,768,209.66, 19,160,989.59 and 5,196,553.22 is: 7,798,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,209.66 : 19,160,989.59 = 5,196,553.22 : x
  2. Step 2: Convert to fraction form
    12,768,209.66/19,160,989.59 = 5,196,553.22/x
  3. Step 3: Cross multiply
    12,768,209.66x = 19,160,989.59 × 5,196,553.22
  4. Step 4: Simplify right side
    12,768,209.66x = 99,571,102,152,300.97
  5. Step 5: Solve for x
    x = 99,571,102,152,300.97/12,768,209.66
  6. Step 6: Final answer
    x = 7,798,360.52

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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.