Home / 12,997,636.90-17,937,299.37-7,196,418.47

Finding the Fourth Proportional to 12,997,636.90, 17,937,299.37 and 7,196,418.47

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Solution

The fourth proportional to 12,997,636.90, 17,937,299.37 and 7,196,418.47 is: 9,931,367.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,636.90 : 17,937,299.37 = 7,196,418.47 : x
  2. Step 2: Convert to fraction form
    12,997,636.90/17,937,299.37 = 7,196,418.47/x
  3. Step 3: Cross multiply
    12,997,636.90x = 17,937,299.37 × 7,196,418.47
  4. Step 4: Simplify right side
    12,997,636.90x = 129,084,312,488,187.36
  5. Step 5: Solve for x
    x = 129,084,312,488,187.36/12,997,636.90
  6. Step 6: Final answer
    x = 9,931,367.79

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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.