Home / 142,029,650.06-212,856,133.37-72,939,662.85

Finding the Fourth Proportional to 142,029,650.06, 212,856,133.37 and 72,939,662.85

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Solution

The fourth proportional to 142,029,650.06, 212,856,133.37 and 72,939,662.85 is: 109,312,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,029,650.06 : 212,856,133.37 = 72,939,662.85 : x
  2. Step 2: Convert to fraction form
    142,029,650.06/212,856,133.37 = 72,939,662.85/x
  3. Step 3: Cross multiply
    142,029,650.06x = 212,856,133.37 × 72,939,662.85
  4. Step 4: Simplify right side
    142,029,650.06x = 15,525,654,603,744,782
  5. Step 5: Solve for x
    x = 15,525,654,603,744,782/142,029,650.06
  6. Step 6: Final answer
    x = 109,312,770.94

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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.