Home / 28,086,386.06-38,760,409.77-15,696,479.12

Finding the Fourth Proportional to 28,086,386.06, 38,760,409.77 and 15,696,479.12

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Solution

The fourth proportional to 28,086,386.06, 38,760,409.77 and 15,696,479.12 is: 21,661,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,386.06 : 38,760,409.77 = 15,696,479.12 : x
  2. Step 2: Convert to fraction form
    28,086,386.06/38,760,409.77 = 15,696,479.12/x
  3. Step 3: Cross multiply
    28,086,386.06x = 38,760,409.77 × 15,696,479.12
  4. Step 4: Simplify right side
    28,086,386.06x = 608,401,962,443,647
  5. Step 5: Solve for x
    x = 608,401,962,443,647/28,086,386.06
  6. Step 6: Final answer
    x = 21,661,810.15

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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.