Home / 7,199,112-9,934,981.92-3,980,055.36

Finding the Fourth Proportional to 7,199,112, 9,934,981.92 and 3,980,055.36

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Solution

The fourth proportional to 7,199,112, 9,934,981.92 and 3,980,055.36 is: 5,492,591.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199,112 : 9,934,981.92 = 3,980,055.36 : x
  2. Step 2: Convert to fraction form
    7,199,112/9,934,981.92 = 3,980,055.36/x
  3. Step 3: Cross multiply
    7,199,112x = 9,934,981.92 × 3,980,055.36
  4. Step 4: Simplify right side
    7,199,112x = 39,541,778,042,199.09
  5. Step 5: Solve for x
    x = 39,541,778,042,199.09/7,199,112
  6. Step 6: Final answer
    x = 5,492,591.04

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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.