Home / 919,218,005.76-1,268,912,261.64-617,978,025.66

Finding the Fourth Proportional to 919,218,005.76, 1,268,912,261.64 and 617,978,025.66

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Solution

The fourth proportional to 919,218,005.76, 1,268,912,261.64 and 617,978,025.66 is: 853,072,817.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,218,005.76 : 1,268,912,261.64 = 617,978,025.66 : x
  2. Step 2: Convert to fraction form
    919,218,005.76/1,268,912,261.64 = 617,978,025.66/x
  3. Step 3: Cross multiply
    919,218,005.76x = 1,268,912,261.64 × 617,978,025.66
  4. Step 4: Simplify right side
    919,218,005.76x = 784,159,894,184,052,608
  5. Step 5: Solve for x
    x = 784,159,894,184,052,608/919,218,005.76
  6. Step 6: Final answer
    x = 853,072,817.62

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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.