Home / 13,388,913.92-18,476,889.60-7,277,342.72

Finding the Fourth Proportional to 13,388,913.92, 18,476,889.60 and 7,277,342.72

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Solution

The fourth proportional to 13,388,913.92, 18,476,889.60 and 7,277,342.72 is: 10,042,835.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388,913.92 : 18,476,889.60 = 7,277,342.72 : x
  2. Step 2: Convert to fraction form
    13,388,913.92/18,476,889.60 = 7,277,342.72/x
  3. Step 3: Cross multiply
    13,388,913.92x = 18,476,889.60 × 7,277,342.72
  4. Step 4: Simplify right side
    13,388,913.92x = 134,462,658,018,803.72
  5. Step 5: Solve for x
    x = 134,462,658,018,803.72/13,388,913.92
  6. Step 6: Final answer
    x = 10,042,835.35

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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.