Home / 12,128,926.22-16,737,478.70-6,622,199.64

Finding the Fourth Proportional to 12,128,926.22, 16,737,478.70 and 6,622,199.64

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Solution

The fourth proportional to 12,128,926.22, 16,737,478.70 and 6,622,199.64 is: 9,138,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,926.22 : 16,737,478.70 = 6,622,199.64 : x
  2. Step 2: Convert to fraction form
    12,128,926.22/16,737,478.70 = 6,622,199.64/x
  3. Step 3: Cross multiply
    12,128,926.22x = 16,737,478.70 × 6,622,199.64
  4. Step 4: Simplify right side
    12,128,926.22x = 110,838,925,421,647.66
  5. Step 5: Solve for x
    x = 110,838,925,421,647.66/12,128,926.22
  6. Step 6: Final answer
    x = 9,138,395.55

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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.