Home / 20,684,876.20-30,953,831.10-18,018,485.80

Finding the Fourth Proportional to 20,684,876.20, 30,953,831.10 and 18,018,485.80

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Solution

The fourth proportional to 20,684,876.20, 30,953,831.10 and 18,018,485.80 is: 26,963,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,876.20 : 30,953,831.10 = 18,018,485.80 : x
  2. Step 2: Convert to fraction form
    20,684,876.20/30,953,831.10 = 18,018,485.80/x
  3. Step 3: Cross multiply
    20,684,876.20x = 30,953,831.10 × 18,018,485.80
  4. Step 4: Simplify right side
    20,684,876.20x = 557,741,166,130,948.44
  5. Step 5: Solve for x
    x = 557,741,166,130,948.44/20,684,876.20
  6. Step 6: Final answer
    x = 26,963,717.87

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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.