Home / 21,058,643.80-31,567,786.16-8,911,397.26

Finding the Fourth Proportional to 21,058,643.80, 31,567,786.16 and 8,911,397.26

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Solution

The fourth proportional to 21,058,643.80, 31,567,786.16 and 8,911,397.26 is: 13,358,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058,643.80 : 31,567,786.16 = 8,911,397.26 : x
  2. Step 2: Convert to fraction form
    21,058,643.80/31,567,786.16 = 8,911,397.26/x
  3. Step 3: Cross multiply
    21,058,643.80x = 31,567,786.16 × 8,911,397.26
  4. Step 4: Simplify right side
    21,058,643.80x = 281,313,082,954,929.53
  5. Step 5: Solve for x
    x = 281,313,082,954,929.53/21,058,643.80
  6. Step 6: Final answer
    x = 13,358,556.50

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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.