Home / 21,215,235,402.60-31,814,097,608.88-7,241,982,787.80

Finding the Fourth Proportional to 21,215,235,402.60, 31,814,097,608.88 and 7,241,982,787.80

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Solution

The fourth proportional to 21,215,235,402.60, 31,814,097,608.88 and 7,241,982,787.80 is: 10,859,985,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215,235,402.60 : 31,814,097,608.88 = 7,241,982,787.80 : x
  2. Step 2: Convert to fraction form
    21,215,235,402.60/31,814,097,608.88 = 7,241,982,787.80/x
  3. Step 3: Cross multiply
    21,215,235,402.60x = 31,814,097,608.88 × 7,241,982,787.80
  4. Step 4: Simplify right side
    21,215,235,402.60x = 230,397,147,292,898,099,200
  5. Step 5: Solve for x
    x = 230,397,147,292,898,099,200/21,215,235,402.60
  6. Step 6: Final answer
    x = 10,859,985,426.54

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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.