Home / 13,958,969.50-20,938,461.90-6,380,620.84

Finding the Fourth Proportional to 13,958,969.50, 20,938,461.90 and 6,380,620.84

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Solution

The fourth proportional to 13,958,969.50, 20,938,461.90 and 6,380,620.84 is: 9,570,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958,969.50 : 20,938,461.90 = 6,380,620.84 : x
  2. Step 2: Convert to fraction form
    13,958,969.50/20,938,461.90 = 6,380,620.84/x
  3. Step 3: Cross multiply
    13,958,969.50x = 20,938,461.90 × 6,380,620.84
  4. Step 4: Simplify right side
    13,958,969.50x = 133,600,386,356,685.98
  5. Step 5: Solve for x
    x = 133,600,386,356,685.98/13,958,969.50
  6. Step 6: Final answer
    x = 9,570,934.76

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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.