Home / 20,583,734.88-28,405,598.08-11,291,381.37

Finding the Fourth Proportional to 20,583,734.88, 28,405,598.08 and 11,291,381.37

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Solution

The fourth proportional to 20,583,734.88, 28,405,598.08 and 11,291,381.37 is: 15,582,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583,734.88 : 28,405,598.08 = 11,291,381.37 : x
  2. Step 2: Convert to fraction form
    20,583,734.88/28,405,598.08 = 11,291,381.37/x
  3. Step 3: Cross multiply
    20,583,734.88x = 28,405,598.08 × 11,291,381.37
  4. Step 4: Simplify right side
    20,583,734.88x = 320,738,440,822,191.75
  5. Step 5: Solve for x
    x = 320,738,440,822,191.75/20,583,734.88
  6. Step 6: Final answer
    x = 15,582,130.39

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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.