Home / 86,621,410.80-129,932,116.20-54,372,783.60

Finding the Fourth Proportional to 86,621,410.80, 129,932,116.20 and 54,372,783.60

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Solution

The fourth proportional to 86,621,410.80, 129,932,116.20 and 54,372,783.60 is: 81,559,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,621,410.80 : 129,932,116.20 = 54,372,783.60 : x
  2. Step 2: Convert to fraction form
    86,621,410.80/129,932,116.20 = 54,372,783.60/x
  3. Step 3: Cross multiply
    86,621,410.80x = 129,932,116.20 × 54,372,783.60
  4. Step 4: Simplify right side
    86,621,410.80x = 7,064,770,836,832,655
  5. Step 5: Solve for x
    x = 7,064,770,836,832,655/86,621,410.80
  6. Step 6: Final answer
    x = 81,559,175.40

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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.