Home / 6,389,166,147.72-8,817,505,538.36-3,531,246,880.20

Finding the Fourth Proportional to 6,389,166,147.72, 8,817,505,538.36 and 3,531,246,880.20

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Solution

The fourth proportional to 6,389,166,147.72, 8,817,505,538.36 and 3,531,246,880.20 is: 4,873,372,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389,166,147.72 : 8,817,505,538.36 = 3,531,246,880.20 : x
  2. Step 2: Convert to fraction form
    6,389,166,147.72/8,817,505,538.36 = 3,531,246,880.20/x
  3. Step 3: Cross multiply
    6,389,166,147.72x = 8,817,505,538.36 × 3,531,246,880.20
  4. Step 4: Simplify right side
    6,389,166,147.72x = 31,136,788,923,479,973,888
  5. Step 5: Solve for x
    x = 31,136,788,923,479,973,888/6,389,166,147.72
  6. Step 6: Final answer
    x = 4,873,372,863.31

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Double scale
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1.5x scale

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.