Home / 143,341,990.38-197,828,740.26-81,471,629.16

Finding the Fourth Proportional to 143,341,990.38, 197,828,740.26 and 81,471,629.16

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Solution

The fourth proportional to 143,341,990.38, 197,828,740.26 and 81,471,629.16 is: 112,440,393.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,341,990.38 : 197,828,740.26 = 81,471,629.16 : x
  2. Step 2: Convert to fraction form
    143,341,990.38/197,828,740.26 = 81,471,629.16/x
  3. Step 3: Cross multiply
    143,341,990.38x = 197,828,740.26 × 81,471,629.16
  4. Step 4: Simplify right side
    143,341,990.38x = 16,117,429,763,652,680
  5. Step 5: Solve for x
    x = 16,117,429,763,652,680/143,341,990.38
  6. Step 6: Final answer
    x = 112,440,393.22

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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.