Home / 43,118,978.60-64,678,467.90-20,444,162.60

Finding the Fourth Proportional to 43,118,978.60, 64,678,467.90 and 20,444,162.60

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Solution

The fourth proportional to 43,118,978.60, 64,678,467.90 and 20,444,162.60 is: 30,666,243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,118,978.60 : 64,678,467.90 = 20,444,162.60 : x
  2. Step 2: Convert to fraction form
    43,118,978.60/64,678,467.90 = 20,444,162.60/x
  3. Step 3: Cross multiply
    43,118,978.60x = 64,678,467.90 × 20,444,162.60
  4. Step 4: Simplify right side
    43,118,978.60x = 1,322,297,114,466,480.50
  5. Step 5: Solve for x
    x = 1,322,297,114,466,480.50/43,118,978.60
  6. Step 6: Final answer
    x = 30,666,243.90

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Similar ratio
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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.