Home / 7,166,128-9,889,256.64-3,946,864

Finding the Fourth Proportional to 7,166,128, 9,889,256.64 and 3,946,864

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Solution

The fourth proportional to 7,166,128, 9,889,256.64 and 3,946,864 is: 5,446,672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166,128 : 9,889,256.64 = 3,946,864 : x
  2. Step 2: Convert to fraction form
    7,166,128/9,889,256.64 = 3,946,864/x
  3. Step 3: Cross multiply
    7,166,128x = 9,889,256.64 × 3,946,864
  4. Step 4: Simplify right side
    7,166,128x = 39,031,551,019,176.96
  5. Step 5: Solve for x
    x = 39,031,551,019,176.96/7,166,128
  6. Step 6: Final answer
    x = 5,446,672.32

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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.