Home / 282,355,912.96-389,660,611.20-156,913,396.54

Finding the Fourth Proportional to 282,355,912.96, 389,660,611.20 and 156,913,396.54

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Solution

The fourth proportional to 282,355,912.96, 389,660,611.20 and 156,913,396.54 is: 216,545,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,355,912.96 : 389,660,611.20 = 156,913,396.54 : x
  2. Step 2: Convert to fraction form
    282,355,912.96/389,660,611.20 = 156,913,396.54/x
  3. Step 3: Cross multiply
    282,355,912.96x = 389,660,611.20 × 156,913,396.54
  4. Step 4: Simplify right side
    282,355,912.96x = 61,142,970,001,244,360
  5. Step 5: Solve for x
    x = 61,142,970,001,244,360/282,355,912.96
  6. Step 6: Final answer
    x = 216,545,739.60

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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.