Home / 143,341,990.88-197,828,740.96-81,471,629.66

Finding the Fourth Proportional to 143,341,990.88, 197,828,740.96 and 81,471,629.66

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Solution

The fourth proportional to 143,341,990.88, 197,828,740.96 and 81,471,629.66 is: 112,440,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,341,990.88 : 197,828,740.96 = 81,471,629.66 : x
  2. Step 2: Convert to fraction form
    143,341,990.88/197,828,740.96 = 81,471,629.66/x
  3. Step 3: Cross multiply
    143,341,990.88x = 197,828,740.96 × 81,471,629.66
  4. Step 4: Simplify right side
    143,341,990.88x = 16,117,429,919,597,192
  5. Step 5: Solve for x
    x = 16,117,429,919,597,192/143,341,990.88
  6. Step 6: Final answer
    x = 112,440,393.92

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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.