Home / 260,769,465,709.62-391,153,710,361.41-81,709,160,415.54

Finding the Fourth Proportional to 260,769,465,709.62, 391,153,710,361.41 and 81,709,160,415.54

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Solution

The fourth proportional to 260,769,465,709.62, 391,153,710,361.41 and 81,709,160,415.54 is: 122,563,587,650.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,769,465,709.62 : 391,153,710,361.41 = 81,709,160,415.54 : x
  2. Step 2: Convert to fraction form
    260,769,465,709.62/391,153,710,361.41 = 81,709,160,415.54/x
  3. Step 3: Cross multiply
    260,769,465,709.62x = 391,153,710,361.41 × 81,709,160,415.54
  4. Step 4: Simplify right side
    260,769,465,709.62x = 31,960,841,267,054,116,864,000
  5. Step 5: Solve for x
    x = 31,960,841,267,054,116,864,000/260,769,465,709.62
  6. Step 6: Final answer
    x = 122,563,587,650.42

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1.5x scale

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.