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Finding the Fourth Proportional to 308,957,639.60, 463,735,057.80 and 155,776,660.40

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Solution

The fourth proportional to 308,957,639.60, 463,735,057.80 and 155,776,660.40 is: 233,815,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,957,639.60 : 463,735,057.80 = 155,776,660.40 : x
  2. Step 2: Convert to fraction form
    308,957,639.60/463,735,057.80 = 155,776,660.40/x
  3. Step 3: Cross multiply
    308,957,639.60x = 463,735,057.80 × 155,776,660.40
  4. Step 4: Simplify right side
    308,957,639.60x = 72,239,098,614,484,976
  5. Step 5: Solve for x
    x = 72,239,098,614,484,976/308,957,639.60
  6. Step 6: Final answer
    x = 233,815,544.12

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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.