Home / 12,422,351.28-17,142,455.28-7,195,461.60

Finding the Fourth Proportional to 12,422,351.28, 17,142,455.28 and 7,195,461.60

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Solution

The fourth proportional to 12,422,351.28, 17,142,455.28 and 7,195,461.60 is: 9,929,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422,351.28 : 17,142,455.28 = 7,195,461.60 : x
  2. Step 2: Convert to fraction form
    12,422,351.28/17,142,455.28 = 7,195,461.60/x
  3. Step 3: Cross multiply
    12,422,351.28x = 17,142,455.28 × 7,195,461.60
  4. Step 4: Simplify right side
    12,422,351.28x = 123,347,878,696,957.25
  5. Step 5: Solve for x
    x = 123,347,878,696,957.25/12,422,351.28
  6. Step 6: Final answer
    x = 9,929,511.40

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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.