Home / 43,638,309-65,457,791.55-19,370,711.84

Finding the Fourth Proportional to 43,638,309, 65,457,791.55 and 19,370,711.84

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Solution

The fourth proportional to 43,638,309, 65,457,791.55 and 19,370,711.84 is: 29,056,213.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,638,309 : 65,457,791.55 = 19,370,711.84 : x
  2. Step 2: Convert to fraction form
    43,638,309/65,457,791.55 = 19,370,711.84/x
  3. Step 3: Cross multiply
    43,638,309x = 65,457,791.55 × 19,370,711.84
  4. Step 4: Simplify right side
    43,638,309x = 1,267,964,017,470,548
  5. Step 5: Solve for x
    x = 1,267,964,017,470,548/43,638,309
  6. Step 6: Final answer
    x = 29,056,213.37

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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.