Home / 12,347,911.52-17,037,039.84-7,122,517.28

Finding the Fourth Proportional to 12,347,911.52, 17,037,039.84 and 7,122,517.28

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Solution

The fourth proportional to 12,347,911.52, 17,037,039.84 and 7,122,517.28 is: 9,827,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,911.52 : 17,037,039.84 = 7,122,517.28 : x
  2. Step 2: Convert to fraction form
    12,347,911.52/17,037,039.84 = 7,122,517.28/x
  3. Step 3: Cross multiply
    12,347,911.52x = 17,037,039.84 × 7,122,517.28
  4. Step 4: Simplify right side
    12,347,911.52x = 121,346,610,660,448.44
  5. Step 5: Solve for x
    x = 121,346,610,660,448.44/12,347,911.52
  6. Step 6: Final answer
    x = 9,827,298.36

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1.5x scale

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.