Home / 25,782,145.75-38,672,656.81-12,127,723.66

Finding the Fourth Proportional to 25,782,145.75, 38,672,656.81 and 12,127,723.66

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Solution

The fourth proportional to 25,782,145.75, 38,672,656.81 and 12,127,723.66 is: 18,191,321.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,782,145.75 : 38,672,656.81 = 12,127,723.66 : x
  2. Step 2: Convert to fraction form
    25,782,145.75/38,672,656.81 = 12,127,723.66/x
  3. Step 3: Cross multiply
    25,782,145.75x = 38,672,656.81 × 12,127,723.66
  4. Step 4: Simplify right side
    25,782,145.75x = 469,011,294,989,697.19
  5. Step 5: Solve for x
    x = 469,011,294,989,697.19/25,782,145.75
  6. Step 6: Final answer
    x = 18,191,321.22

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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.