Home / 137,107,090.35-189,207,764.15-78,371,016.62

Finding the Fourth Proportional to 137,107,090.35, 189,207,764.15 and 78,371,016.62

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Solution

The fourth proportional to 137,107,090.35, 189,207,764.15 and 78,371,016.62 is: 108,151,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,107,090.35 : 189,207,764.15 = 78,371,016.62 : x
  2. Step 2: Convert to fraction form
    137,107,090.35/189,207,764.15 = 78,371,016.62/x
  3. Step 3: Cross multiply
    137,107,090.35x = 189,207,764.15 × 78,371,016.62
  4. Step 4: Simplify right side
    137,107,090.35x = 14,828,404,827,494,796
  5. Step 5: Solve for x
    x = 14,828,404,827,494,796/137,107,090.35
  6. Step 6: Final answer
    x = 108,151,991.19

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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.