Home / 15,345,911.63-21,177,359.89-8,470,395.52

Finding the Fourth Proportional to 15,345,911.63, 21,177,359.89 and 8,470,395.52

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Solution

The fourth proportional to 15,345,911.63, 21,177,359.89 and 8,470,395.52 is: 11,689,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345,911.63 : 21,177,359.89 = 8,470,395.52 : x
  2. Step 2: Convert to fraction form
    15,345,911.63/21,177,359.89 = 8,470,395.52/x
  3. Step 3: Cross multiply
    15,345,911.63x = 21,177,359.89 × 8,470,395.52
  4. Step 4: Simplify right side
    15,345,911.63x = 179,380,614,263,564.31
  5. Step 5: Solve for x
    x = 179,380,614,263,564.31/15,345,911.63
  6. Step 6: Final answer
    x = 11,689,146.83

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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.