Home / 12,788,643.30-17,656,148.61-8,322,454.14

Finding the Fourth Proportional to 12,788,643.30, 17,656,148.61 and 8,322,454.14

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Solution

The fourth proportional to 12,788,643.30, 17,656,148.61 and 8,322,454.14 is: 11,490,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,643.30 : 17,656,148.61 = 8,322,454.14 : x
  2. Step 2: Convert to fraction form
    12,788,643.30/17,656,148.61 = 8,322,454.14/x
  3. Step 3: Cross multiply
    12,788,643.30x = 17,656,148.61 × 8,322,454.14
  4. Step 4: Simplify right side
    12,788,643.30x = 146,942,487,095,749.75
  5. Step 5: Solve for x
    x = 146,942,487,095,749.75/12,788,643.30
  6. Step 6: Final answer
    x = 11,490,076.28

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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.