Home / 420,764,103.64-631,146,157.80-114,056,215.12

Finding the Fourth Proportional to 420,764,103.64, 631,146,157.80 and 114,056,215.12

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Solution

The fourth proportional to 420,764,103.64, 631,146,157.80 and 114,056,215.12 is: 171,084,323.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,764,103.64 : 631,146,157.80 = 114,056,215.12 : x
  2. Step 2: Convert to fraction form
    420,764,103.64/631,146,157.80 = 114,056,215.12/x
  3. Step 3: Cross multiply
    420,764,103.64x = 631,146,157.80 × 114,056,215.12
  4. Step 4: Simplify right side
    420,764,103.64x = 71,986,141,946,198,264
  5. Step 5: Solve for x
    x = 71,986,141,946,198,264/420,764,103.64
  6. Step 6: Final answer
    x = 171,084,323.31

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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.