Home / 57,109,760,088.28-78,812,183,078.91-31,391,847,876.08

Finding the Fourth Proportional to 57,109,760,088.28, 78,812,183,078.91 and 31,391,847,876.08

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Solution

The fourth proportional to 57,109,760,088.28, 78,812,183,078.91 and 31,391,847,876.08 is: 43,321,142,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,109,760,088.28 : 78,812,183,078.91 = 31,391,847,876.08 : x
  2. Step 2: Convert to fraction form
    57,109,760,088.28/78,812,183,078.91 = 31,391,847,876.08/x
  3. Step 3: Cross multiply
    57,109,760,088.28x = 78,812,183,078.91 × 31,391,847,876.08
  4. Step 4: Simplify right side
    57,109,760,088.28x = 2,474,060,061,994,909,171,712
  5. Step 5: Solve for x
    x = 2,474,060,061,994,909,171,712/57,109,760,088.28
  6. Step 6: Final answer
    x = 43,321,142,623.79

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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.