Home / 8,138,736.69-12,192,143.47-4,719,840.63

Finding the Fourth Proportional to 8,138,736.69, 12,192,143.47 and 4,719,840.63

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Solution

The fourth proportional to 8,138,736.69, 12,192,143.47 and 4,719,840.63 is: 7,070,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138,736.69 : 12,192,143.47 = 4,719,840.63 : x
  2. Step 2: Convert to fraction form
    8,138,736.69/12,192,143.47 = 4,719,840.63/x
  3. Step 3: Cross multiply
    8,138,736.69x = 12,192,143.47 × 4,719,840.63
  4. Step 4: Simplify right side
    8,138,736.69x = 57,544,974,116,495.19
  5. Step 5: Solve for x
    x = 57,544,974,116,495.19/8,138,736.69
  6. Step 6: Final answer
    x = 7,070,504.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.