Home / 20,369,728.53-28,110,566.03-11,668,659.93

Finding the Fourth Proportional to 20,369,728.53, 28,110,566.03 and 11,668,659.93

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Solution

The fourth proportional to 20,369,728.53, 28,110,566.03 and 11,668,659.93 is: 16,102,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369,728.53 : 28,110,566.03 = 11,668,659.93 : x
  2. Step 2: Convert to fraction form
    20,369,728.53/28,110,566.03 = 11,668,659.93/x
  3. Step 3: Cross multiply
    20,369,728.53x = 28,110,566.03 × 11,668,659.93
  4. Step 4: Simplify right side
    20,369,728.53x = 328,012,635,385,536.88
  5. Step 5: Solve for x
    x = 328,012,635,385,536.88/20,369,728.53
  6. Step 6: Final answer
    x = 16,102,945.84

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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.