Home / 812,563,619.77-1,216,776,313.92-535,374,474.49

Finding the Fourth Proportional to 812,563,619.77, 1,216,776,313.92 and 535,374,474.49

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Solution

The fourth proportional to 812,563,619.77, 1,216,776,313.92 and 535,374,474.49 is: 801,698,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,563,619.77 : 1,216,776,313.92 = 535,374,474.49 : x
  2. Step 2: Convert to fraction form
    812,563,619.77/1,216,776,313.92 = 535,374,474.49/x
  3. Step 3: Cross multiply
    812,563,619.77x = 1,216,776,313.92 × 535,374,474.49
  4. Step 4: Simplify right side
    812,563,619.77x = 651,430,979,630,715,392
  5. Step 5: Solve for x
    x = 651,430,979,630,715,392/812,563,619.77
  6. Step 6: Final answer
    x = 801,698,431.71

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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.