Home / 86,470,102.60-129,705,153.90-82,738,205.80

Finding the Fourth Proportional to 86,470,102.60, 129,705,153.90 and 82,738,205.80

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Solution

The fourth proportional to 86,470,102.60, 129,705,153.90 and 82,738,205.80 is: 124,107,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,470,102.60 : 129,705,153.90 = 82,738,205.80 : x
  2. Step 2: Convert to fraction form
    86,470,102.60/129,705,153.90 = 82,738,205.80/x
  3. Step 3: Cross multiply
    86,470,102.60x = 129,705,153.90 × 82,738,205.80
  4. Step 4: Simplify right side
    86,470,102.60x = 10,731,571,716,698,872
  5. Step 5: Solve for x
    x = 10,731,571,716,698,872/86,470,102.60
  6. Step 6: Final answer
    x = 124,107,308.70

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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.