Home / 298,731,884,439.51-412,251,242,588.72-161,554,710,673.09

Finding the Fourth Proportional to 298,731,884,439.51, 412,251,242,588.72 and 161,554,710,673.09

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Solution

The fourth proportional to 298,731,884,439.51, 412,251,242,588.72 and 161,554,710,673.09 is: 222,946,172,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,731,884,439.51 : 412,251,242,588.72 = 161,554,710,673.09 : x
  2. Step 2: Convert to fraction form
    298,731,884,439.51/412,251,242,588.72 = 161,554,710,673.09/x
  3. Step 3: Cross multiply
    298,731,884,439.51x = 412,251,242,588.72 × 161,554,710,673.09
  4. Step 4: Simplify right side
    298,731,884,439.51x = 66,601,130,221,042,491,457,536
  5. Step 5: Solve for x
    x = 66,601,130,221,042,491,457,536/298,731,884,439.51
  6. Step 6: Final answer
    x = 222,946,172,438.21

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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.