Home / 13,688,942.48-18,890,741-7,577,370.98

Finding the Fourth Proportional to 13,688,942.48, 18,890,741 and 7,577,370.98

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Solution

The fourth proportional to 13,688,942.48, 18,890,741 and 7,577,370.98 is: 10,456,772.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688,942.48 : 18,890,741 = 7,577,370.98 : x
  2. Step 2: Convert to fraction form
    13,688,942.48/18,890,741 = 7,577,370.98/x
  3. Step 3: Cross multiply
    13,688,942.48x = 18,890,741 × 7,577,370.98
  4. Step 4: Simplify right side
    13,688,942.48x = 143,142,152,644,096.19
  5. Step 5: Solve for x
    x = 143,142,152,644,096.19/13,688,942.48
  6. Step 6: Final answer
    x = 10,456,772.16

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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.