Home / 7,077,786.76-9,767,252.56-3,980,309.18

Finding the Fourth Proportional to 7,077,786.76, 9,767,252.56 and 3,980,309.18

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Solution

The fourth proportional to 7,077,786.76, 9,767,252.56 and 3,980,309.18 is: 5,492,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077,786.76 : 9,767,252.56 = 3,980,309.18 : x
  2. Step 2: Convert to fraction form
    7,077,786.76/9,767,252.56 = 3,980,309.18/x
  3. Step 3: Cross multiply
    7,077,786.76x = 9,767,252.56 × 3,980,309.18
  4. Step 4: Simplify right side
    7,077,786.76x = 38,876,685,008,044.95
  5. Step 5: Solve for x
    x = 38,876,685,008,044.95/7,077,786.76
  6. Step 6: Final answer
    x = 5,492,774.27

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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.