Home / 19,331,709.68-26,678,717.89-11,991,907.24

Finding the Fourth Proportional to 19,331,709.68, 26,678,717.89 and 11,991,907.24

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Solution

The fourth proportional to 19,331,709.68, 26,678,717.89 and 11,991,907.24 is: 16,549,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331,709.68 : 26,678,717.89 = 11,991,907.24 : x
  2. Step 2: Convert to fraction form
    19,331,709.68/26,678,717.89 = 11,991,907.24/x
  3. Step 3: Cross multiply
    19,331,709.68x = 26,678,717.89 × 11,991,907.24
  4. Step 4: Simplify right side
    19,331,709.68x = 319,928,710,122,332
  5. Step 5: Solve for x
    x = 319,928,710,122,332/19,331,709.68
  6. Step 6: Final answer
    x = 16,549,426.58

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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.