Home / 19,699,112.86-27,192,030.10-11,858,989.72

Finding the Fourth Proportional to 19,699,112.86, 27,192,030.10 and 11,858,989.72

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Solution

The fourth proportional to 19,699,112.86, 27,192,030.10 and 11,858,989.72 is: 16,369,772.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699,112.86 : 27,192,030.10 = 11,858,989.72 : x
  2. Step 2: Convert to fraction form
    19,699,112.86/27,192,030.10 = 11,858,989.72/x
  3. Step 3: Cross multiply
    19,699,112.86x = 27,192,030.10 × 11,858,989.72
  4. Step 4: Simplify right side
    19,699,112.86x = 322,470,005,421,830.62
  5. Step 5: Solve for x
    x = 322,470,005,421,830.62/19,699,112.86
  6. Step 6: Final answer
    x = 16,369,772.98

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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.