Home / 81,227,668.19-121,829,538.15-26,646,021.50

Finding the Fourth Proportional to 81,227,668.19, 121,829,538.15 and 26,646,021.50

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Solution

The fourth proportional to 81,227,668.19, 121,829,538.15 and 26,646,021.50 is: 39,965,107.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,227,668.19 : 121,829,538.15 = 26,646,021.50 : x
  2. Step 2: Convert to fraction form
    81,227,668.19/121,829,538.15 = 26,646,021.50/x
  3. Step 3: Cross multiply
    81,227,668.19x = 121,829,538.15 × 26,646,021.50
  4. Step 4: Simplify right side
    81,227,668.19x = 3,246,272,492,879,970.50
  5. Step 5: Solve for x
    x = 3,246,272,492,879,970.50/81,227,668.19
  6. Step 6: Final answer
    x = 39,965,107.52

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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.