Home / 12,475,605.72-17,217,336.10-9,918,390.36

Finding the Fourth Proportional to 12,475,605.72, 17,217,336.10 and 9,918,390.36

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Solution

The fourth proportional to 12,475,605.72, 17,217,336.10 and 9,918,390.36 is: 13,688,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475,605.72 : 17,217,336.10 = 9,918,390.36 : x
  2. Step 2: Convert to fraction form
    12,475,605.72/17,217,336.10 = 9,918,390.36/x
  3. Step 3: Cross multiply
    12,475,605.72x = 17,217,336.10 × 9,918,390.36
  4. Step 4: Simplify right side
    12,475,605.72x = 170,768,260,399,120
  5. Step 5: Solve for x
    x = 170,768,260,399,120/12,475,605.72
  6. Step 6: Final answer
    x = 13,688,173.88

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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.