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Finding the Fourth Proportional to 12,290,655.40, 17,175,031.10 and 12,290,655.40

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Solution

The fourth proportional to 12,290,655.40, 17,175,031.10 and 12,290,655.40 is: 17,175,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,655.40 : 17,175,031.10 = 12,290,655.40 : x
  2. Step 2: Convert to fraction form
    12,290,655.40/17,175,031.10 = 12,290,655.40/x
  3. Step 3: Cross multiply
    12,290,655.40x = 17,175,031.10 × 12,290,655.40
  4. Step 4: Simplify right side
    12,290,655.40x = 211,092,388,734,382.97
  5. Step 5: Solve for x
    x = 211,092,388,734,382.97/12,290,655.40
  6. Step 6: Final answer
    x = 17,175,031.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.