Home / 20,030,485.96-27,642,070.62-10,863,128.71

Finding the Fourth Proportional to 20,030,485.96, 27,642,070.62 and 10,863,128.71

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Solution

The fourth proportional to 20,030,485.96, 27,642,070.62 and 10,863,128.71 is: 14,991,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030,485.96 : 27,642,070.62 = 10,863,128.71 : x
  2. Step 2: Convert to fraction form
    20,030,485.96/27,642,070.62 = 10,863,128.71/x
  3. Step 3: Cross multiply
    20,030,485.96x = 27,642,070.62 × 10,863,128.71
  4. Step 4: Simplify right side
    20,030,485.96x = 300,279,370,901,653.88
  5. Step 5: Solve for x
    x = 300,279,370,901,653.88/20,030,485.96
  6. Step 6: Final answer
    x = 14,991,117.61

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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.