Home / 12,928,627.44-17,841,643.40-7,127,616.80

Finding the Fourth Proportional to 12,928,627.44, 17,841,643.40 and 7,127,616.80

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Solution

The fourth proportional to 12,928,627.44, 17,841,643.40 and 7,127,616.80 is: 9,836,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,627.44 : 17,841,643.40 = 7,127,616.80 : x
  2. Step 2: Convert to fraction form
    12,928,627.44/17,841,643.40 = 7,127,616.80/x
  3. Step 3: Cross multiply
    12,928,627.44x = 17,841,643.40 × 7,127,616.80
  4. Step 4: Simplify right side
    12,928,627.44x = 127,168,397,237,449.11
  5. Step 5: Solve for x
    x = 127,168,397,237,449.11/12,928,627.44
  6. Step 6: Final answer
    x = 9,836,187.01

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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.