Home / 12,426,064.91-18,630,431.43-5,505,780.40

Finding the Fourth Proportional to 12,426,064.91, 18,630,431.43 and 5,505,780.40

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Solution

The fourth proportional to 12,426,064.91, 18,630,431.43 and 5,505,780.40 is: 8,254,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426,064.91 : 18,630,431.43 = 5,505,780.40 : x
  2. Step 2: Convert to fraction form
    12,426,064.91/18,630,431.43 = 5,505,780.40/x
  3. Step 3: Cross multiply
    12,426,064.91x = 18,630,431.43 × 5,505,780.40
  4. Step 4: Simplify right side
    12,426,064.91x = 102,575,064,143,615.22
  5. Step 5: Solve for x
    x = 102,575,064,143,615.22/12,426,064.91
  6. Step 6: Final answer
    x = 8,254,830.87

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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.