Home / 19,780,664.55-29,670,996.83-12,127,914.15

Finding the Fourth Proportional to 19,780,664.55, 29,670,996.83 and 12,127,914.15

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Solution

The fourth proportional to 19,780,664.55, 29,670,996.83 and 12,127,914.15 is: 18,191,871.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780,664.55 : 29,670,996.83 = 12,127,914.15 : x
  2. Step 2: Convert to fraction form
    19,780,664.55/29,670,996.83 = 12,127,914.15/x
  3. Step 3: Cross multiply
    19,780,664.55x = 29,670,996.83 × 12,127,914.15
  4. Step 4: Simplify right side
    19,780,664.55x = 359,847,302,238,522.56
  5. Step 5: Solve for x
    x = 359,847,302,238,522.56/19,780,664.55
  6. Step 6: Final answer
    x = 18,191,871.23

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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.