Home / 20,392,303.44-28,138,086-11,688,874.50

Finding the Fourth Proportional to 20,392,303.44, 28,138,086 and 11,688,874.50

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Solution

The fourth proportional to 20,392,303.44, 28,138,086 and 11,688,874.50 is: 16,128,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,303.44 : 28,138,086 = 11,688,874.50 : x
  2. Step 2: Convert to fraction form
    20,392,303.44/28,138,086 = 11,688,874.50/x
  3. Step 3: Cross multiply
    20,392,303.44x = 28,138,086 × 11,688,874.50
  4. Step 4: Simplify right side
    20,392,303.44x = 328,902,555,924,207
  5. Step 5: Solve for x
    x = 328,902,555,924,207/20,392,303.44
  6. Step 6: Final answer
    x = 16,128,759.41

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1.5x scale

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.