Home / 13,688,941.48-18,890,739.62-7,577,369.98

Finding the Fourth Proportional to 13,688,941.48, 18,890,739.62 and 7,577,369.98

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Solution

The fourth proportional to 13,688,941.48, 18,890,739.62 and 7,577,369.98 is: 10,456,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688,941.48 : 18,890,739.62 = 7,577,369.98 : x
  2. Step 2: Convert to fraction form
    13,688,941.48/18,890,739.62 = 7,577,369.98/x
  3. Step 3: Cross multiply
    13,688,941.48x = 18,890,739.62 × 7,577,369.98
  4. Step 4: Simplify right side
    13,688,941.48x = 143,142,123,296,584.62
  5. Step 5: Solve for x
    x = 143,142,123,296,584.62/13,688,941.48
  6. Step 6: Final answer
    x = 10,456,770.78

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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.