Home / 20,434,946.22-28,214,632.80-13,111,645.50

Finding the Fourth Proportional to 20,434,946.22, 28,214,632.80 and 13,111,645.50

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Solution

The fourth proportional to 20,434,946.22, 28,214,632.80 and 13,111,645.50 is: 18,103,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,946.22 : 28,214,632.80 = 13,111,645.50 : x
  2. Step 2: Convert to fraction form
    20,434,946.22/28,214,632.80 = 13,111,645.50/x
  3. Step 3: Cross multiply
    20,434,946.22x = 28,214,632.80 × 13,111,645.50
  4. Step 4: Simplify right side
    20,434,946.22x = 369,940,263,186,272.44
  5. Step 5: Solve for x
    x = 369,940,263,186,272.44/20,434,946.22
  6. Step 6: Final answer
    x = 18,103,314.74

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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.