Home / 9,821,669.12-13,554,209.35-5,636,120.48

Finding the Fourth Proportional to 9,821,669.12, 13,554,209.35 and 5,636,120.48

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Solution

The fourth proportional to 9,821,669.12, 13,554,209.35 and 5,636,120.48 is: 7,778,021.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821,669.12 : 13,554,209.35 = 5,636,120.48 : x
  2. Step 2: Convert to fraction form
    9,821,669.12/13,554,209.35 = 5,636,120.48/x
  3. Step 3: Cross multiply
    9,821,669.12x = 13,554,209.35 × 5,636,120.48
  4. Step 4: Simplify right side
    9,821,669.12x = 76,393,156,907,742.48
  5. Step 5: Solve for x
    x = 76,393,156,907,742.48/9,821,669.12
  6. Step 6: Final answer
    x = 7,778,021.84

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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.