Home / 315,945,635.34-473,939,247.72-82,782,056.64

Finding the Fourth Proportional to 315,945,635.34, 473,939,247.72 and 82,782,056.64

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Solution

The fourth proportional to 315,945,635.34, 473,939,247.72 and 82,782,056.64 is: 124,178,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,945,635.34 : 473,939,247.72 = 82,782,056.64 : x
  2. Step 2: Convert to fraction form
    315,945,635.34/473,939,247.72 = 82,782,056.64/x
  3. Step 3: Cross multiply
    315,945,635.34x = 473,939,247.72 × 82,782,056.64
  4. Step 4: Simplify right side
    315,945,635.34x = 39,233,665,648,676,032
  5. Step 5: Solve for x
    x = 39,233,665,648,676,032/315,945,635.34
  6. Step 6: Final answer
    x = 124,178,533.46

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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.