Home / 13,579,211.16-18,738,937.71-7,467,639.66

Finding the Fourth Proportional to 13,579,211.16, 18,738,937.71 and 7,467,639.66

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Solution

The fourth proportional to 13,579,211.16, 18,738,937.71 and 7,467,639.66 is: 10,305,137.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,211.16 : 18,738,937.71 = 7,467,639.66 : x
  2. Step 2: Convert to fraction form
    13,579,211.16/18,738,937.71 = 7,467,639.66/x
  3. Step 3: Cross multiply
    13,579,211.16x = 18,738,937.71 × 7,467,639.66
  4. Step 4: Simplify right side
    13,579,211.16x = 139,935,634,429,465.59
  5. Step 5: Solve for x
    x = 139,935,634,429,465.59/13,579,211.16
  6. Step 6: Final answer
    x = 10,305,137.23

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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.