Home / 86,933,999.20-130,400,998.80-56,322,997.60

Finding the Fourth Proportional to 86,933,999.20, 130,400,998.80 and 56,322,997.60

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Solution

The fourth proportional to 86,933,999.20, 130,400,998.80 and 56,322,997.60 is: 84,484,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933,999.20 : 130,400,998.80 = 56,322,997.60 : x
  2. Step 2: Convert to fraction form
    86,933,999.20/130,400,998.80 = 56,322,997.60/x
  3. Step 3: Cross multiply
    86,933,999.20x = 130,400,998.80 × 56,322,997.60
  4. Step 4: Simplify right side
    86,933,999.20x = 7,344,575,142,450,003
  5. Step 5: Solve for x
    x = 7,344,575,142,450,003/86,933,999.20
  6. Step 6: Final answer
    x = 84,484,496.40

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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.