Home / 8,845,942-12,207,792.74-4,978,713.64

Finding the Fourth Proportional to 8,845,942, 12,207,792.74 and 4,978,713.64

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Solution

The fourth proportional to 8,845,942, 12,207,792.74 and 4,978,713.64 is: 6,870,845.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845,942 : 12,207,792.74 = 4,978,713.64 : x
  2. Step 2: Convert to fraction form
    8,845,942/12,207,792.74 = 4,978,713.64/x
  3. Step 3: Cross multiply
    8,845,942x = 12,207,792.74 × 4,978,713.64
  4. Step 4: Simplify right side
    8,845,942x = 60,779,104,228,930.97
  5. Step 5: Solve for x
    x = 60,779,104,228,930.97/8,845,942
  6. Step 6: Final answer
    x = 6,870,845.89

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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.