Home / 318,997,237.84-440,298,094.76-207,765,258.73

Finding the Fourth Proportional to 318,997,237.84, 440,298,094.76 and 207,765,258.73

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Solution

The fourth proportional to 318,997,237.84, 440,298,094.76 and 207,765,258.73 is: 286,769,403.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,997,237.84 : 440,298,094.76 = 207,765,258.73 : x
  2. Step 2: Convert to fraction form
    318,997,237.84/440,298,094.76 = 207,765,258.73/x
  3. Step 3: Cross multiply
    318,997,237.84x = 440,298,094.76 × 207,765,258.73
  4. Step 4: Simplify right side
    318,997,237.84x = 91,478,647,576,137,456
  5. Step 5: Solve for x
    x = 91,478,647,576,137,456/318,997,237.84
  6. Step 6: Final answer
    x = 286,769,403.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.