Home / 21,260,853,921.60-31,883,895,622.80-11,831,886,768.96

Finding the Fourth Proportional to 21,260,853,921.60, 31,883,895,622.80 and 11,831,886,768.96

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Solution

The fourth proportional to 21,260,853,921.60, 31,883,895,622.80 and 11,831,886,768.96 is: 17,743,720,179.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260,853,921.60 : 31,883,895,622.80 = 11,831,886,768.96 : x
  2. Step 2: Convert to fraction form
    21,260,853,921.60/31,883,895,622.80 = 11,831,886,768.96/x
  3. Step 3: Cross multiply
    21,260,853,921.60x = 31,883,895,622.80 × 11,831,886,768.96
  4. Step 4: Simplify right side
    21,260,853,921.60x = 377,246,642,762,308,911,104
  5. Step 5: Solve for x
    x = 377,246,642,762,308,911,104/21,260,853,921.60
  6. Step 6: Final answer
    x = 17,743,720,179.51

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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.