Home / 69,138,011.89-103,693,563.93-19,950,407.11

Finding the Fourth Proportional to 69,138,011.89, 103,693,563.93 and 19,950,407.11

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Solution

The fourth proportional to 69,138,011.89, 103,693,563.93 and 19,950,407.11 is: 29,921,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138,011.89 : 103,693,563.93 = 19,950,407.11 : x
  2. Step 2: Convert to fraction form
    69,138,011.89/103,693,563.93 = 19,950,407.11/x
  3. Step 3: Cross multiply
    69,138,011.89x = 103,693,563.93 × 19,950,407.11
  4. Step 4: Simplify right side
    69,138,011.89x = 2,068,728,815,090,311.50
  5. Step 5: Solve for x
    x = 2,068,728,815,090,311.50/69,138,011.89
  6. Step 6: Final answer
    x = 29,921,728.42

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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.