Home / 71,100,853.68-98,127,157.56-40,163,015.52

Finding the Fourth Proportional to 71,100,853.68, 98,127,157.56 and 40,163,015.52

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Solution

The fourth proportional to 71,100,853.68, 98,127,157.56 and 40,163,015.52 is: 55,429,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,100,853.68 : 98,127,157.56 = 40,163,015.52 : x
  2. Step 2: Convert to fraction form
    71,100,853.68/98,127,157.56 = 40,163,015.52/x
  3. Step 3: Cross multiply
    71,100,853.68x = 98,127,157.56 × 40,163,015.52
  4. Step 4: Simplify right side
    71,100,853.68x = 3,941,082,552,015,765.50
  5. Step 5: Solve for x
    x = 3,941,082,552,015,765.50/71,100,853.68
  6. Step 6: Final answer
    x = 55,429,468.82

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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.