Home / 12,971,908.24-17,900,530.78-7,170,316.30

Finding the Fourth Proportional to 12,971,908.24, 17,900,530.78 and 7,170,316.30

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Solution

The fourth proportional to 12,971,908.24, 17,900,530.78 and 7,170,316.30 is: 9,894,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971,908.24 : 17,900,530.78 = 7,170,316.30 : x
  2. Step 2: Convert to fraction form
    12,971,908.24/17,900,530.78 = 7,170,316.30/x
  3. Step 3: Cross multiply
    12,971,908.24x = 17,900,530.78 × 7,170,316.30
  4. Step 4: Simplify right side
    12,971,908.24x = 128,352,467,630,485.72
  5. Step 5: Solve for x
    x = 128,352,467,630,485.72/12,971,908.24
  6. Step 6: Final answer
    x = 9,894,648.13

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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.