Home / 103,769,483.88-143,201,919.14-56,726,761.96

Finding the Fourth Proportional to 103,769,483.88, 143,201,919.14 and 56,726,761.96

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Solution

The fourth proportional to 103,769,483.88, 143,201,919.14 and 56,726,761.96 is: 78,282,948.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,769,483.88 : 143,201,919.14 = 56,726,761.96 : x
  2. Step 2: Convert to fraction form
    103,769,483.88/143,201,919.14 = 56,726,761.96/x
  3. Step 3: Cross multiply
    103,769,483.88x = 143,201,919.14 × 56,726,761.96
  4. Step 4: Simplify right side
    103,769,483.88x = 8,123,381,179,269,947
  5. Step 5: Solve for x
    x = 8,123,381,179,269,947/103,769,483.88
  6. Step 6: Final answer
    x = 78,282,948.66

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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.