Home / 20,808,749.70-31,213,124.55-19,958,444.10

Finding the Fourth Proportional to 20,808,749.70, 31,213,124.55 and 19,958,444.10

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Solution

The fourth proportional to 20,808,749.70, 31,213,124.55 and 19,958,444.10 is: 29,937,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,749.70 : 31,213,124.55 = 19,958,444.10 : x
  2. Step 2: Convert to fraction form
    20,808,749.70/31,213,124.55 = 19,958,444.10/x
  3. Step 3: Cross multiply
    20,808,749.70x = 31,213,124.55 × 19,958,444.10
  4. Step 4: Simplify right side
    20,808,749.70x = 622,965,401,517,512.75
  5. Step 5: Solve for x
    x = 622,965,401,517,512.75/20,808,749.70
  6. Step 6: Final answer
    x = 29,937,666.15

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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.