Home / 12,621,561.67-18,913,077.54-7,493,894.14

Finding the Fourth Proportional to 12,621,561.67, 18,913,077.54 and 7,493,894.14

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Solution

The fourth proportional to 12,621,561.67, 18,913,077.54 and 7,493,894.14 is: 11,229,402.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621,561.67 : 18,913,077.54 = 7,493,894.14 : x
  2. Step 2: Convert to fraction form
    12,621,561.67/18,913,077.54 = 7,493,894.14/x
  3. Step 3: Cross multiply
    12,621,561.67x = 18,913,077.54 × 7,493,894.14
  4. Step 4: Simplify right side
    12,621,561.67x = 141,732,600,946,371.59
  5. Step 5: Solve for x
    x = 141,732,600,946,371.59/12,621,561.67
  6. Step 6: Final answer
    x = 11,229,402.88

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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.