Home / 13,958,970-20,938,462.65-6,380,621.34

Finding the Fourth Proportional to 13,958,970, 20,938,462.65 and 6,380,621.34

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Solution

The fourth proportional to 13,958,970, 20,938,462.65 and 6,380,621.34 is: 9,570,935.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958,970 : 20,938,462.65 = 6,380,621.34 : x
  2. Step 2: Convert to fraction form
    13,958,970/20,938,462.65 = 6,380,621.34/x
  3. Step 3: Cross multiply
    13,958,970x = 20,938,462.65 × 6,380,621.34
  4. Step 4: Simplify right side
    13,958,970x = 133,600,401,611,382.94
  5. Step 5: Solve for x
    x = 133,600,401,611,382.94/13,958,970
  6. Step 6: Final answer
    x = 9,570,935.51

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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.