Home / 66,106,091.60-99,159,137.40-40,240,005.20

Finding the Fourth Proportional to 66,106,091.60, 99,159,137.40 and 40,240,005.20

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Solution

The fourth proportional to 66,106,091.60, 99,159,137.40 and 40,240,005.20 is: 60,360,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,106,091.60 : 99,159,137.40 = 40,240,005.20 : x
  2. Step 2: Convert to fraction form
    66,106,091.60/99,159,137.40 = 40,240,005.20/x
  3. Step 3: Cross multiply
    66,106,091.60x = 99,159,137.40 × 40,240,005.20
  4. Step 4: Simplify right side
    66,106,091.60x = 3,990,164,204,603,515
  5. Step 5: Solve for x
    x = 3,990,164,204,603,515/66,106,091.60
  6. Step 6: Final answer
    x = 60,360,007.80

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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.