Home / 186,520,355.96-279,781,058.81-71,540,143.16

Finding the Fourth Proportional to 186,520,355.96, 279,781,058.81 and 71,540,143.16

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Solution

The fourth proportional to 186,520,355.96, 279,781,058.81 and 71,540,143.16 is: 107,310,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,520,355.96 : 279,781,058.81 = 71,540,143.16 : x
  2. Step 2: Convert to fraction form
    186,520,355.96/279,781,058.81 = 71,540,143.16/x
  3. Step 3: Cross multiply
    186,520,355.96x = 279,781,058.81 × 71,540,143.16
  4. Step 4: Simplify right side
    186,520,355.96x = 20,015,576,999,503,724
  5. Step 5: Solve for x
    x = 20,015,576,999,503,724/186,520,355.96
  6. Step 6: Final answer
    x = 107,310,416.05

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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.