Home / 28,746,172.08-39,670,319.16-15,693,981.12

Finding the Fourth Proportional to 28,746,172.08, 39,670,319.16 and 15,693,981.12

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Solution

The fourth proportional to 28,746,172.08, 39,670,319.16 and 15,693,981.12 is: 21,658,022.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746,172.08 : 39,670,319.16 = 15,693,981.12 : x
  2. Step 2: Convert to fraction form
    28,746,172.08/39,670,319.16 = 15,693,981.12/x
  3. Step 3: Cross multiply
    28,746,172.08x = 39,670,319.16 × 15,693,981.12
  4. Step 4: Simplify right side
    28,746,172.08x = 622,585,239,921,414.12
  5. Step 5: Solve for x
    x = 622,585,239,921,414.12/28,746,172.08
  6. Step 6: Final answer
    x = 21,658,022.44

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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.