Home / 43,346,961.82-65,030,006.64-12,643,943.50

Finding the Fourth Proportional to 43,346,961.82, 65,030,006.64 and 12,643,943.50

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Solution

The fourth proportional to 43,346,961.82, 65,030,006.64 and 12,643,943.50 is: 18,968,704.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,346,961.82 : 65,030,006.64 = 12,643,943.50 : x
  2. Step 2: Convert to fraction form
    43,346,961.82/65,030,006.64 = 12,643,943.50/x
  3. Step 3: Cross multiply
    43,346,961.82x = 65,030,006.64 × 12,643,943.50
  4. Step 4: Simplify right side
    43,346,961.82x = 822,235,729,760,784.88
  5. Step 5: Solve for x
    x = 822,235,729,760,784.88/43,346,961.82
  6. Step 6: Final answer
    x = 18,968,704.96

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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.