Home / 109,420,583,749.28-163,917,122,588.40-75,380,101,920.16

Finding the Fourth Proportional to 109,420,583,749.28, 163,917,122,588.40 and 75,380,101,920.16

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Solution

The fourth proportional to 109,420,583,749.28, 163,917,122,588.40 and 75,380,101,920.16 is: 112,922,897,902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,420,583,749.28 : 163,917,122,588.40 = 75,380,101,920.16 : x
  2. Step 2: Convert to fraction form
    109,420,583,749.28/163,917,122,588.40 = 75,380,101,920.16/x
  3. Step 3: Cross multiply
    109,420,583,749.28x = 163,917,122,588.40 × 75,380,101,920.16
  4. Step 4: Simplify right side
    109,420,583,749.28x = 12,356,089,407,172,952,195,072
  5. Step 5: Solve for x
    x = 12,356,089,407,172,952,195,072/109,420,583,749.28
  6. Step 6: Final answer
    x = 112,922,897,902.69

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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.