Home / 21,405,888.32-29,540,145.20-11,616,332.60

Finding the Fourth Proportional to 21,405,888.32, 29,540,145.20 and 11,616,332.60

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Solution

The fourth proportional to 21,405,888.32, 29,540,145.20 and 11,616,332.60 is: 16,030,549.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,888.32 : 29,540,145.20 = 11,616,332.60 : x
  2. Step 2: Convert to fraction form
    21,405,888.32/29,540,145.20 = 11,616,332.60/x
  3. Step 3: Cross multiply
    21,405,888.32x = 29,540,145.20 × 11,616,332.60
  4. Step 4: Simplify right side
    21,405,888.32x = 343,148,151,711,262.19
  5. Step 5: Solve for x
    x = 343,148,151,711,262.19/21,405,888.32
  6. Step 6: Final answer
    x = 16,030,549.48

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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.