Home / 82,190,865-113,422,003.74-45,520,648.68

Finding the Fourth Proportional to 82,190,865, 113,422,003.74 and 45,520,648.68

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Solution

The fourth proportional to 82,190,865, 113,422,003.74 and 45,520,648.68 is: 62,817,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,190,865 : 113,422,003.74 = 45,520,648.68 : x
  2. Step 2: Convert to fraction form
    82,190,865/113,422,003.74 = 45,520,648.68/x
  3. Step 3: Cross multiply
    82,190,865x = 113,422,003.74 × 45,520,648.68
  4. Step 4: Simplify right side
    82,190,865x = 5,163,043,184,830,186
  5. Step 5: Solve for x
    x = 5,163,043,184,830,186/82,190,865
  6. Step 6: Final answer
    x = 62,817,725.36

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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.