Home / 20,983,556.86-31,468,987.42-7,334,159.18

Finding the Fourth Proportional to 20,983,556.86, 31,468,987.42 and 7,334,159.18

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Solution

The fourth proportional to 20,983,556.86, 31,468,987.42 and 7,334,159.18 is: 10,999,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983,556.86 : 31,468,987.42 = 7,334,159.18 : x
  2. Step 2: Convert to fraction form
    20,983,556.86/31,468,987.42 = 7,334,159.18/x
  3. Step 3: Cross multiply
    20,983,556.86x = 31,468,987.42 × 7,334,159.18
  4. Step 4: Simplify right side
    20,983,556.86x = 230,798,562,796,017.19
  5. Step 5: Solve for x
    x = 230,798,562,796,017.19/20,983,556.86
  6. Step 6: Final answer
    x = 10,999,020.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.