Home / 281,106,311.82-387,905,529.87-171,085,865.10

Finding the Fourth Proportional to 281,106,311.82, 387,905,529.87 and 171,085,865.10

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Solution

The fourth proportional to 281,106,311.82, 387,905,529.87 and 171,085,865.10 is: 236,085,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,106,311.82 : 387,905,529.87 = 171,085,865.10 : x
  2. Step 2: Convert to fraction form
    281,106,311.82/387,905,529.87 = 171,085,865.10/x
  3. Step 3: Cross multiply
    281,106,311.82x = 387,905,529.87 × 171,085,865.10
  4. Step 4: Simplify right side
    281,106,311.82x = 66,365,153,154,882,840
  5. Step 5: Solve for x
    x = 66,365,153,154,882,840/281,106,311.82
  6. Step 6: Final answer
    x = 236,085,603.08

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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.