Home / 20,689,445.75-31,036,745.01-7,041,543.32

Finding the Fourth Proportional to 20,689,445.75, 31,036,745.01 and 7,041,543.32

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Solution

The fourth proportional to 20,689,445.75, 31,036,745.01 and 7,041,543.32 is: 10,563,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,445.75 : 31,036,745.01 = 7,041,543.32 : x
  2. Step 2: Convert to fraction form
    20,689,445.75/31,036,745.01 = 7,041,543.32/x
  3. Step 3: Cross multiply
    20,689,445.75x = 31,036,745.01 × 7,041,543.32
  4. Step 4: Simplify right side
    20,689,445.75x = 218,546,584,344,525.12
  5. Step 5: Solve for x
    x = 218,546,584,344,525.12/20,689,445.75
  6. Step 6: Final answer
    x = 10,563,191.83

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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.