Home / 100,435,429.70-138,593,241.15-56,373,916.03

Finding the Fourth Proportional to 100,435,429.70, 138,593,241.15 and 56,373,916.03

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Solution

The fourth proportional to 100,435,429.70, 138,593,241.15 and 56,373,916.03 is: 77,791,709.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,435,429.70 : 138,593,241.15 = 56,373,916.03 : x
  2. Step 2: Convert to fraction form
    100,435,429.70/138,593,241.15 = 56,373,916.03/x
  3. Step 3: Cross multiply
    100,435,429.70x = 138,593,241.15 × 56,373,916.03
  4. Step 4: Simplify right side
    100,435,429.70x = 7,813,043,738,357,756
  5. Step 5: Solve for x
    x = 7,813,043,738,357,756/100,435,429.70
  6. Step 6: Final answer
    x = 77,791,709.18

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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.