Home / 15,510,007.88-21,403,810.87-8,540,668.82

Finding the Fourth Proportional to 15,510,007.88, 21,403,810.87 and 8,540,668.82

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Solution

The fourth proportional to 15,510,007.88, 21,403,810.87 and 8,540,668.82 is: 11,786,122.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510,007.88 : 21,403,810.87 = 8,540,668.82 : x
  2. Step 2: Convert to fraction form
    15,510,007.88/21,403,810.87 = 8,540,668.82/x
  3. Step 3: Cross multiply
    15,510,007.88x = 21,403,810.87 × 8,540,668.82
  4. Step 4: Simplify right side
    15,510,007.88x = 182,802,860,227,768.91
  5. Step 5: Solve for x
    x = 182,802,860,227,768.91/15,510,007.88
  6. Step 6: Final answer
    x = 11,786,122.98

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1.5x scale

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.