Home / 12,975,959.16-17,906,100.12-7,174,392.48

Finding the Fourth Proportional to 12,975,959.16, 17,906,100.12 and 7,174,392.48

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Solution

The fourth proportional to 12,975,959.16, 17,906,100.12 and 7,174,392.48 is: 9,900,261.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975,959.16 : 17,906,100.12 = 7,174,392.48 : x
  2. Step 2: Convert to fraction form
    12,975,959.16/17,906,100.12 = 7,174,392.48/x
  3. Step 3: Cross multiply
    12,975,959.16x = 17,906,100.12 × 7,174,392.48
  4. Step 4: Simplify right side
    12,975,959.16x = 128,465,390,047,055.11
  5. Step 5: Solve for x
    x = 128,465,390,047,055.11/12,975,959.16
  6. Step 6: Final answer
    x = 9,900,261.59

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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.