Home / 21,879,573.63-30,213,178.52-13,633,708.83

Finding the Fourth Proportional to 21,879,573.63, 30,213,178.52 and 13,633,708.83

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Solution

The fourth proportional to 21,879,573.63, 30,213,178.52 and 13,633,708.83 is: 18,826,586.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879,573.63 : 30,213,178.52 = 13,633,708.83 : x
  2. Step 2: Convert to fraction form
    21,879,573.63/30,213,178.52 = 13,633,708.83/x
  3. Step 3: Cross multiply
    21,879,573.63x = 30,213,178.52 × 13,633,708.83
  4. Step 4: Simplify right side
    21,879,573.63x = 411,917,678,770,490.31
  5. Step 5: Solve for x
    x = 411,917,678,770,490.31/21,879,573.63
  6. Step 6: Final answer
    x = 18,826,586.19

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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.