Home / 21,315,780,320.06-29,414,611,469.11-11,668,644,040.16

Finding the Fourth Proportional to 21,315,780,320.06, 29,414,611,469.11 and 11,668,644,040.16

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Solution

The fourth proportional to 21,315,780,320.06, 29,414,611,469.11 and 11,668,644,040.16 is: 16,102,090,829.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,780,320.06 : 29,414,611,469.11 = 11,668,644,040.16 : x
  2. Step 2: Convert to fraction form
    21,315,780,320.06/29,414,611,469.11 = 11,668,644,040.16/x
  3. Step 3: Cross multiply
    21,315,780,320.06x = 29,414,611,469.11 × 11,668,644,040.16
  4. Step 4: Simplify right side
    21,315,780,320.06x = 343,228,630,812,617,342,976
  5. Step 5: Solve for x
    x = 343,228,630,812,617,342,976/21,315,780,320.06
  6. Step 6: Final answer
    x = 16,102,090,829.38

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Double scale
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1.5x scale

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.