Home / 143,773,306.74-198,384,992.37-81,885,755.70

Finding the Fourth Proportional to 143,773,306.74, 198,384,992.37 and 81,885,755.70

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Solution

The fourth proportional to 143,773,306.74, 198,384,992.37 and 81,885,755.70 is: 112,989,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,773,306.74 : 198,384,992.37 = 81,885,755.70 : x
  2. Step 2: Convert to fraction form
    143,773,306.74/198,384,992.37 = 81,885,755.70/x
  3. Step 3: Cross multiply
    143,773,306.74x = 198,384,992.37 × 81,885,755.70
  4. Step 4: Simplify right side
    143,773,306.74x = 16,244,905,019,756,184
  5. Step 5: Solve for x
    x = 16,244,905,019,756,184/143,773,306.74
  6. Step 6: Final answer
    x = 112,989,715.46

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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.