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Finding the Fourth Proportional to 308,895,504.40, 463,336,171.80 and 155,500,368.40

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Solution

The fourth proportional to 308,895,504.40, 463,336,171.80 and 155,500,368.40 is: 233,246,986.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,895,504.40 : 463,336,171.80 = 155,500,368.40 : x
  2. Step 2: Convert to fraction form
    308,895,504.40/463,336,171.80 = 155,500,368.40/x
  3. Step 3: Cross multiply
    308,895,504.40x = 463,336,171.80 × 155,500,368.40
  4. Step 4: Simplify right side
    308,895,504.40x = 72,048,945,407,945,696
  5. Step 5: Solve for x
    x = 72,048,945,407,945,696/308,895,504.40
  6. Step 6: Final answer
    x = 233,246,986.06

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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.