Home / 189,918,653.85-262,087,742.32-102,998,525.85

Finding the Fourth Proportional to 189,918,653.85, 262,087,742.32 and 102,998,525.85

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Solution

The fourth proportional to 189,918,653.85, 262,087,742.32 and 102,998,525.85 is: 142,137,965.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,918,653.85 : 262,087,742.32 = 102,998,525.85 : x
  2. Step 2: Convert to fraction form
    189,918,653.85/262,087,742.32 = 102,998,525.85/x
  3. Step 3: Cross multiply
    189,918,653.85x = 262,087,742.32 × 102,998,525.85
  4. Step 4: Simplify right side
    189,918,653.85x = 26,994,651,102,314,656
  5. Step 5: Solve for x
    x = 26,994,651,102,314,656/189,918,653.85
  6. Step 6: Final answer
    x = 142,137,965.68

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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.