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Finding the Fourth Proportional to 485,111,569,057.60, 727,667,353,586.40 and 485,111,569,057.60

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Solution

The fourth proportional to 485,111,569,057.60, 727,667,353,586.40 and 485,111,569,057.60 is: 727,667,353,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,111,569,057.60 : 727,667,353,586.40 = 485,111,569,057.60 : x
  2. Step 2: Convert to fraction form
    485,111,569,057.60/727,667,353,586.40 = 485,111,569,057.60/x
  3. Step 3: Cross multiply
    485,111,569,057.60x = 727,667,353,586.40 × 485,111,569,057.60
  4. Step 4: Simplify right side
    485,111,569,057.60x = 352,999,851,650,289,940,561,920
  5. Step 5: Solve for x
    x = 352,999,851,650,289,940,561,920/485,111,569,057.60
  6. Step 6: Final answer
    x = 727,667,353,586.40

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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.