Home / 13,078,020.63-18,047,651.58-8,114,615.93

Finding the Fourth Proportional to 13,078,020.63, 18,047,651.58 and 8,114,615.93

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Solution

The fourth proportional to 13,078,020.63, 18,047,651.58 and 8,114,615.93 is: 11,198,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078,020.63 : 18,047,651.58 = 8,114,615.93 : x
  2. Step 2: Convert to fraction form
    13,078,020.63/18,047,651.58 = 8,114,615.93/x
  3. Step 3: Cross multiply
    13,078,020.63x = 18,047,651.58 × 8,114,615.93
  4. Step 4: Simplify right side
    13,078,020.63x = 146,449,761,010,157.66
  5. Step 5: Solve for x
    x = 146,449,761,010,157.66/13,078,020.63
  6. Step 6: Final answer
    x = 11,198,159.50

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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.