Home / 20,890,310.90-28,828,733.47-13,054,373.27

Finding the Fourth Proportional to 20,890,310.90, 28,828,733.47 and 13,054,373.27

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Solution

The fourth proportional to 20,890,310.90, 28,828,733.47 and 13,054,373.27 is: 18,015,100.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890,310.90 : 28,828,733.47 = 13,054,373.27 : x
  2. Step 2: Convert to fraction form
    20,890,310.90/28,828,733.47 = 13,054,373.27/x
  3. Step 3: Cross multiply
    20,890,310.90x = 28,828,733.47 × 13,054,373.27
  4. Step 4: Simplify right side
    20,890,310.90x = 376,341,047,550,050.56
  5. Step 5: Solve for x
    x = 376,341,047,550,050.56/20,890,310.90
  6. Step 6: Final answer
    x = 18,015,100.37

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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.