Home / 12,889,629.75-17,788,156.74-7,384,068.66

Finding the Fourth Proportional to 12,889,629.75, 17,788,156.74 and 7,384,068.66

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Solution

The fourth proportional to 12,889,629.75, 17,788,156.74 and 7,384,068.66 is: 10,190,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,629.75 : 17,788,156.74 = 7,384,068.66 : x
  2. Step 2: Convert to fraction form
    12,889,629.75/17,788,156.74 = 7,384,068.66/x
  3. Step 3: Cross multiply
    12,889,629.75x = 17,788,156.74 × 7,384,068.66
  4. Step 4: Simplify right side
    12,889,629.75x = 131,348,970,703,001.77
  5. Step 5: Solve for x
    x = 131,348,970,703,001.77/12,889,629.75
  6. Step 6: Final answer
    x = 10,190,282.67

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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.