Home / 12,911,954,109.72-17,817,946,133.18-7,195,934,375.64

Finding the Fourth Proportional to 12,911,954,109.72, 17,817,946,133.18 and 7,195,934,375.64

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Solution

The fourth proportional to 12,911,954,109.72, 17,817,946,133.18 and 7,195,934,375.64 is: 9,930,082,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911,954,109.72 : 17,817,946,133.18 = 7,195,934,375.64 : x
  2. Step 2: Convert to fraction form
    12,911,954,109.72/17,817,946,133.18 = 7,195,934,375.64/x
  3. Step 3: Cross multiply
    12,911,954,109.72x = 17,817,946,133.18 × 7,195,934,375.64
  4. Step 4: Simplify right side
    12,911,954,109.72x = 128,216,771,083,051,778,048
  5. Step 5: Solve for x
    x = 128,216,771,083,051,778,048/12,911,954,109.72
  6. Step 6: Final answer
    x = 9,930,082,619.06

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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.