Home / 119,650,335.12-165,253,664.16-80,424,009.90

Finding the Fourth Proportional to 119,650,335.12, 165,253,664.16 and 80,424,009.90

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Solution

The fourth proportional to 119,650,335.12, 165,253,664.16 and 80,424,009.90 is: 111,076,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,650,335.12 : 165,253,664.16 = 80,424,009.90 : x
  2. Step 2: Convert to fraction form
    119,650,335.12/165,253,664.16 = 80,424,009.90/x
  3. Step 3: Cross multiply
    119,650,335.12x = 165,253,664.16 × 80,424,009.90
  4. Step 4: Simplify right side
    119,650,335.12x = 13,290,362,322,415,116
  5. Step 5: Solve for x
    x = 13,290,362,322,415,116/119,650,335.12
  6. Step 6: Final answer
    x = 111,076,682.81

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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.