Home / 39,023,905,797.92-53,853,479,783.76-21,202,860,910.88

Finding the Fourth Proportional to 39,023,905,797.92, 53,853,479,783.76 and 21,202,860,910.88

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Solution

The fourth proportional to 39,023,905,797.92, 53,853,479,783.76 and 21,202,860,910.88 is: 29,260,214,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,023,905,797.92 : 53,853,479,783.76 = 21,202,860,910.88 : x
  2. Step 2: Convert to fraction form
    39,023,905,797.92/53,853,479,783.76 = 21,202,860,910.88/x
  3. Step 3: Cross multiply
    39,023,905,797.92x = 53,853,479,783.76 × 21,202,860,910.88
  4. Step 4: Simplify right side
    39,023,905,797.92x = 1,141,847,841,421,951,369,216
  5. Step 5: Solve for x
    x = 1,141,847,841,421,951,369,216/39,023,905,797.92
  6. Step 6: Final answer
    x = 29,260,214,170.64

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1.5x scale

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.