Home / 513,363,638.43-769,990,868.69-144,889,480.35

Finding the Fourth Proportional to 513,363,638.43, 769,990,868.69 and 144,889,480.35

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Solution

The fourth proportional to 513,363,638.43, 769,990,868.69 and 144,889,480.35 is: 217,318,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,363,638.43 : 769,990,868.69 = 144,889,480.35 : x
  2. Step 2: Convert to fraction form
    513,363,638.43/769,990,868.69 = 144,889,480.35/x
  3. Step 3: Cross multiply
    513,363,638.43x = 769,990,868.69 × 144,889,480.35
  4. Step 4: Simplify right side
    513,363,638.43x = 111,563,576,838,014,720
  5. Step 5: Solve for x
    x = 111,563,576,838,014,720/513,363,638.43
  6. Step 6: Final answer
    x = 217,318,813.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.