Home / 15,004,447.92-20,706,237.54-8,128,929.98

Finding the Fourth Proportional to 15,004,447.92, 20,706,237.54 and 8,128,929.98

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Solution

The fourth proportional to 15,004,447.92, 20,706,237.54 and 8,128,929.98 is: 11,217,977.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,447.92 : 20,706,237.54 = 8,128,929.98 : x
  2. Step 2: Convert to fraction form
    15,004,447.92/20,706,237.54 = 8,128,929.98/x
  3. Step 3: Cross multiply
    15,004,447.92x = 20,706,237.54 × 8,128,929.98
  4. Step 4: Simplify right side
    15,004,447.92x = 168,319,555,163,673.03
  5. Step 5: Solve for x
    x = 168,319,555,163,673.03/15,004,447.92
  6. Step 6: Final answer
    x = 11,217,977.23

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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.