Home / 120,273,031.44-165,976,783.34-65,268,887.94

Finding the Fourth Proportional to 120,273,031.44, 165,976,783.34 and 65,268,887.94

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Solution

The fourth proportional to 120,273,031.44, 165,976,783.34 and 65,268,887.94 is: 90,071,065.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,273,031.44 : 165,976,783.34 = 65,268,887.94 : x
  2. Step 2: Convert to fraction form
    120,273,031.44/165,976,783.34 = 65,268,887.94/x
  3. Step 3: Cross multiply
    120,273,031.44x = 165,976,783.34 × 65,268,887.94
  4. Step 4: Simplify right side
    120,273,031.44x = 10,833,120,072,460,118
  5. Step 5: Solve for x
    x = 10,833,120,072,460,118/120,273,031.44
  6. Step 6: Final answer
    x = 90,071,065.33

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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.