Home / 20,373,720.32-28,114,054.08-11,999,784.80

Finding the Fourth Proportional to 20,373,720.32, 28,114,054.08 and 11,999,784.80

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Solution

The fourth proportional to 20,373,720.32, 28,114,054.08 and 11,999,784.80 is: 16,558,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,720.32 : 28,114,054.08 = 11,999,784.80 : x
  2. Step 2: Convert to fraction form
    20,373,720.32/28,114,054.08 = 11,999,784.80/x
  3. Step 3: Cross multiply
    20,373,720.32x = 28,114,054.08 × 11,999,784.80
  4. Step 4: Simplify right side
    20,373,720.32x = 337,362,598,815,562
  5. Step 5: Solve for x
    x = 337,362,598,815,562/20,373,720.32
  6. Step 6: Final answer
    x = 16,558,713.55

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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.