Home / 281,106,310.32-387,905,527.80-171,085,863.60

Finding the Fourth Proportional to 281,106,310.32, 387,905,527.80 and 171,085,863.60

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Solution

The fourth proportional to 281,106,310.32, 387,905,527.80 and 171,085,863.60 is: 236,085,601.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,106,310.32 : 387,905,527.80 = 171,085,863.60 : x
  2. Step 2: Convert to fraction form
    281,106,310.32/387,905,527.80 = 171,085,863.60/x
  3. Step 3: Cross multiply
    281,106,310.32x = 387,905,527.80 × 171,085,863.60
  4. Step 4: Simplify right side
    281,106,310.32x = 66,365,152,218,876,808
  5. Step 5: Solve for x
    x = 66,365,152,218,876,808/281,106,310.32
  6. Step 6: Final answer
    x = 236,085,601.01

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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.