Home / 13,698,771.36-18,897,137.22-8,470,108.08

Finding the Fourth Proportional to 13,698,771.36, 18,897,137.22 and 8,470,108.08

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Solution

The fourth proportional to 13,698,771.36, 18,897,137.22 and 8,470,108.08 is: 11,684,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698,771.36 : 18,897,137.22 = 8,470,108.08 : x
  2. Step 2: Convert to fraction form
    13,698,771.36/18,897,137.22 = 8,470,108.08/x
  3. Step 3: Cross multiply
    13,698,771.36x = 18,897,137.22 × 8,470,108.08
  4. Step 4: Simplify right side
    13,698,771.36x = 160,060,794,655,990.72
  5. Step 5: Solve for x
    x = 160,060,794,655,990.72/13,698,771.36
  6. Step 6: Final answer
    x = 11,684,317.55

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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.