Home / 138,252,727.08-190,790,358.66-76,371,768.36

Finding the Fourth Proportional to 138,252,727.08, 190,790,358.66 and 76,371,768.36

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Solution

The fourth proportional to 138,252,727.08, 190,790,358.66 and 76,371,768.36 is: 105,393,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,252,727.08 : 190,790,358.66 = 76,371,768.36 : x
  2. Step 2: Convert to fraction form
    138,252,727.08/190,790,358.66 = 76,371,768.36/x
  3. Step 3: Cross multiply
    138,252,727.08x = 190,790,358.66 × 76,371,768.36
  4. Step 4: Simplify right side
    138,252,727.08x = 14,570,997,076,902,840
  5. Step 5: Solve for x
    x = 14,570,997,076,902,840/138,252,727.08
  6. Step 6: Final answer
    x = 105,393,921.59

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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.