Home / 12,455,310.32-17,189,511.36-7,809,830.72

Finding the Fourth Proportional to 12,455,310.32, 17,189,511.36 and 7,809,830.72

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Solution

The fourth proportional to 12,455,310.32, 17,189,511.36 and 7,809,830.72 is: 10,778,308.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,310.32 : 17,189,511.36 = 7,809,830.72 : x
  2. Step 2: Convert to fraction form
    12,455,310.32/17,189,511.36 = 7,809,830.72/x
  3. Step 3: Cross multiply
    12,455,310.32x = 17,189,511.36 × 7,809,830.72
  4. Step 4: Simplify right side
    12,455,310.32x = 134,247,173,881,116.97
  5. Step 5: Solve for x
    x = 134,247,173,881,116.97/12,455,310.32
  6. Step 6: Final answer
    x = 10,778,308.24

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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.