Home / 13,119,699.56-18,111,740.16-8,159,739.63

Finding the Fourth Proportional to 13,119,699.56, 18,111,740.16 and 8,159,739.63

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Solution

The fourth proportional to 13,119,699.56, 18,111,740.16 and 8,159,739.63 is: 11,264,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119,699.56 : 18,111,740.16 = 8,159,739.63 : x
  2. Step 2: Convert to fraction form
    13,119,699.56/18,111,740.16 = 8,159,739.63/x
  3. Step 3: Cross multiply
    13,119,699.56x = 18,111,740.16 × 8,159,739.63
  4. Step 4: Simplify right side
    13,119,699.56x = 147,787,083,951,814.53
  5. Step 5: Solve for x
    x = 147,787,083,951,814.53/13,119,699.56
  6. Step 6: Final answer
    x = 11,264,517.40

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1.5x scale

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.