Home / 12,117,865.76-16,722,071.12-6,610,912.80

Finding the Fourth Proportional to 12,117,865.76, 16,722,071.12 and 6,610,912.80

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Solution

The fourth proportional to 12,117,865.76, 16,722,071.12 and 6,610,912.80 is: 9,122,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117,865.76 : 16,722,071.12 = 6,610,912.80 : x
  2. Step 2: Convert to fraction form
    12,117,865.76/16,722,071.12 = 6,610,912.80/x
  3. Step 3: Cross multiply
    12,117,865.76x = 16,722,071.12 × 6,610,912.80
  4. Step 4: Simplify right side
    12,117,865.76x = 110,548,154,009,718.33
  5. Step 5: Solve for x
    x = 110,548,154,009,718.33/12,117,865.76
  6. Step 6: Final answer
    x = 9,122,741.26

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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.