Home / 28,086,386.06-38,760,409.79-15,696,479.13

Finding the Fourth Proportional to 28,086,386.06, 38,760,409.79 and 15,696,479.13

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Solution

The fourth proportional to 28,086,386.06, 38,760,409.79 and 15,696,479.13 is: 21,661,810.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,386.06 : 38,760,409.79 = 15,696,479.13 : x
  2. Step 2: Convert to fraction form
    28,086,386.06/38,760,409.79 = 15,696,479.13/x
  3. Step 3: Cross multiply
    28,086,386.06x = 38,760,409.79 × 15,696,479.13
  4. Step 4: Simplify right side
    28,086,386.06x = 608,401,963,260,500.25
  5. Step 5: Solve for x
    x = 608,401,963,260,500.25/28,086,386.06
  6. Step 6: Final answer
    x = 21,661,810.18

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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.