Home / 13,405,065.76-18,498,438.12-7,293,518.56

Finding the Fourth Proportional to 13,405,065.76, 18,498,438.12 and 7,293,518.56

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Solution

The fourth proportional to 13,405,065.76, 18,498,438.12 and 7,293,518.56 is: 10,064,754.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405,065.76 : 18,498,438.12 = 7,293,518.56 : x
  2. Step 2: Convert to fraction form
    13,405,065.76/18,498,438.12 = 7,293,518.56/x
  3. Step 3: Cross multiply
    13,405,065.76x = 18,498,438.12 × 7,293,518.56
  4. Step 4: Simplify right side
    13,405,065.76x = 134,918,701,759,231.50
  5. Step 5: Solve for x
    x = 134,918,701,759,231.50/13,405,065.76
  6. Step 6: Final answer
    x = 10,064,754.93

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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.