Home / 15,660,961.16-21,607,282.98-9,129,967.64

Finding the Fourth Proportional to 15,660,961.16, 21,607,282.98 and 9,129,967.64

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Solution

The fourth proportional to 15,660,961.16, 21,607,282.98 and 9,129,967.64 is: 12,596,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660,961.16 : 21,607,282.98 = 9,129,967.64 : x
  2. Step 2: Convert to fraction form
    15,660,961.16/21,607,282.98 = 9,129,967.64/x
  3. Step 3: Cross multiply
    15,660,961.16x = 21,607,282.98 × 9,129,967.64
  4. Step 4: Simplify right side
    15,660,961.16x = 197,273,794,395,722.78
  5. Step 5: Solve for x
    x = 197,273,794,395,722.78/15,660,961.16
  6. Step 6: Final answer
    x = 12,596,531.74

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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.