Home / 71,193,792.92-106,790,864.40-20,076,079.64

Finding the Fourth Proportional to 71,193,792.92, 106,790,864.40 and 20,076,079.64

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Solution

The fourth proportional to 71,193,792.92, 106,790,864.40 and 20,076,079.64 is: 30,114,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,193,792.92 : 106,790,864.40 = 20,076,079.64 : x
  2. Step 2: Convert to fraction form
    71,193,792.92/106,790,864.40 = 20,076,079.64/x
  3. Step 3: Cross multiply
    71,193,792.92x = 106,790,864.40 × 20,076,079.64
  4. Step 4: Simplify right side
    71,193,792.92x = 2,143,941,898,518,841
  5. Step 5: Solve for x
    x = 2,143,941,898,518,841/71,193,792.92
  6. Step 6: Final answer
    x = 30,114,168.81

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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.