Home / 15,415,714.75-21,271,970.00-8,538,474.55

Finding the Fourth Proportional to 15,415,714.75, 21,271,970.00 and 8,538,474.55

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Solution

The fourth proportional to 15,415,714.75, 21,271,970.00 and 8,538,474.55 is: 11,782,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415,714.75 : 21,271,970.00 = 8,538,474.55 : x
  2. Step 2: Convert to fraction form
    15,415,714.75/21,271,970.00 = 8,538,474.55/x
  3. Step 3: Cross multiply
    15,415,714.75x = 21,271,970.00 × 8,538,474.55
  4. Step 4: Simplify right side
    15,415,714.75x = 181,630,174,477,347
  5. Step 5: Solve for x
    x = 181,630,174,477,347/15,415,714.75
  6. Step 6: Final answer
    x = 11,782,144.22

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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.