Home / 12,492,068.40-18,738,102.60-7,705,162.80

Finding the Fourth Proportional to 12,492,068.40, 18,738,102.60 and 7,705,162.80

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Solution

The fourth proportional to 12,492,068.40, 18,738,102.60 and 7,705,162.80 is: 11,557,744.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,068.40 : 18,738,102.60 = 7,705,162.80 : x
  2. Step 2: Convert to fraction form
    12,492,068.40/18,738,102.60 = 7,705,162.80/x
  3. Step 3: Cross multiply
    12,492,068.40x = 18,738,102.60 × 7,705,162.80
  4. Step 4: Simplify right side
    12,492,068.40x = 144,380,131,096,103.28
  5. Step 5: Solve for x
    x = 144,380,131,096,103.28/12,492,068.40
  6. Step 6: Final answer
    x = 11,557,744.20

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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.