Home / 19,890,989.34-27,447,109.83-12,546,048.18

Finding the Fourth Proportional to 19,890,989.34, 27,447,109.83 and 12,546,048.18

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Solution

The fourth proportional to 19,890,989.34, 27,447,109.83 and 12,546,048.18 is: 17,311,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890,989.34 : 27,447,109.83 = 12,546,048.18 : x
  2. Step 2: Convert to fraction form
    19,890,989.34/27,447,109.83 = 12,546,048.18/x
  3. Step 3: Cross multiply
    19,890,989.34x = 27,447,109.83 × 12,546,048.18
  4. Step 4: Simplify right side
    19,890,989.34x = 344,352,762,328,931.56
  5. Step 5: Solve for x
    x = 344,352,762,328,931.56/19,890,989.34
  6. Step 6: Final answer
    x = 17,311,997.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.