Home / 12,820,503.90-17,691,594.61-7,018,163.26

Finding the Fourth Proportional to 12,820,503.90, 17,691,594.61 and 7,018,163.26

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Solution

The fourth proportional to 12,820,503.90, 17,691,594.61 and 7,018,163.26 is: 9,684,681.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,503.90 : 17,691,594.61 = 7,018,163.26 : x
  2. Step 2: Convert to fraction form
    12,820,503.90/17,691,594.61 = 7,018,163.26/x
  3. Step 3: Cross multiply
    12,820,503.90x = 17,691,594.61 × 7,018,163.26
  4. Step 4: Simplify right side
    12,820,503.90x = 124,162,499,267,625.22
  5. Step 5: Solve for x
    x = 124,162,499,267,625.22/12,820,503.90
  6. Step 6: Final answer
    x = 9,684,681.69

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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.