Home / 13,420,457.91-20,129,179.33-3,706,451.87

Finding the Fourth Proportional to 13,420,457.91, 20,129,179.33 and 3,706,451.87

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Solution

The fourth proportional to 13,420,457.91, 20,129,179.33 and 3,706,451.87 is: 5,559,261.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,457.91 : 20,129,179.33 = 3,706,451.87 : x
  2. Step 2: Convert to fraction form
    13,420,457.91/20,129,179.33 = 3,706,451.87/x
  3. Step 3: Cross multiply
    13,420,457.91x = 20,129,179.33 × 3,706,451.87
  4. Step 4: Simplify right side
    13,420,457.91x = 74,607,834,443,072.98
  5. Step 5: Solve for x
    x = 74,607,834,443,072.98/13,420,457.91
  6. Step 6: Final answer
    x = 5,559,261.46

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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.