Home / 430,886,936.40-646,330,404.60-299,373,003.60

Finding the Fourth Proportional to 430,886,936.40, 646,330,404.60 and 299,373,003.60

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Solution

The fourth proportional to 430,886,936.40, 646,330,404.60 and 299,373,003.60 is: 449,059,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,886,936.40 : 646,330,404.60 = 299,373,003.60 : x
  2. Step 2: Convert to fraction form
    430,886,936.40/646,330,404.60 = 299,373,003.60/x
  3. Step 3: Cross multiply
    430,886,936.40x = 646,330,404.60 × 299,373,003.60
  4. Step 4: Simplify right side
    430,886,936.40x = 193,493,874,543,105,280
  5. Step 5: Solve for x
    x = 193,493,874,543,105,280/430,886,936.40
  6. Step 6: Final answer
    x = 449,059,505.40

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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.