Home / 20,467,971.12-30,699,852.72-6,819,643.44

Finding the Fourth Proportional to 20,467,971.12, 30,699,852.72 and 6,819,643.44

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Solution

The fourth proportional to 20,467,971.12, 30,699,852.72 and 6,819,643.44 is: 10,228,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467,971.12 : 30,699,852.72 = 6,819,643.44 : x
  2. Step 2: Convert to fraction form
    20,467,971.12/30,699,852.72 = 6,819,643.44/x
  3. Step 3: Cross multiply
    20,467,971.12x = 30,699,852.72 × 6,819,643.44
  4. Step 4: Simplify right side
    20,467,971.12x = 209,362,049,210,914.16
  5. Step 5: Solve for x
    x = 209,362,049,210,914.16/20,467,971.12
  6. Step 6: Final answer
    x = 10,228,764.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.