Home / 12,822,776.76-17,659,749.42-9,911,442.36

Finding the Fourth Proportional to 12,822,776.76, 17,659,749.42 and 9,911,442.36

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Solution

The fourth proportional to 12,822,776.76, 17,659,749.42 and 9,911,442.36 is: 13,650,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822,776.76 : 17,659,749.42 = 9,911,442.36 : x
  2. Step 2: Convert to fraction form
    12,822,776.76/17,659,749.42 = 9,911,442.36/x
  3. Step 3: Cross multiply
    12,822,776.76x = 17,659,749.42 × 9,911,442.36
  4. Step 4: Simplify right side
    12,822,776.76x = 175,033,588,468,373.44
  5. Step 5: Solve for x
    x = 175,033,588,468,373.44/12,822,776.76
  6. Step 6: Final answer
    x = 13,650,209.45

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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.