Home / 319,297,813.60-478,946,720.40-137,899,285.60

Finding the Fourth Proportional to 319,297,813.60, 478,946,720.40 and 137,899,285.60

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Solution

The fourth proportional to 319,297,813.60, 478,946,720.40 and 137,899,285.60 is: 206,848,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,297,813.60 : 478,946,720.40 = 137,899,285.60 : x
  2. Step 2: Convert to fraction form
    319,297,813.60/478,946,720.40 = 137,899,285.60/x
  3. Step 3: Cross multiply
    319,297,813.60x = 478,946,720.40 × 137,899,285.60
  4. Step 4: Simplify right side
    319,297,813.60x = 66,046,410,583,622,944
  5. Step 5: Solve for x
    x = 66,046,410,583,622,944/319,297,813.60
  6. Step 6: Final answer
    x = 206,848,928.40

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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.