Home / 507,093,403.78-700,445,333.21-419,341,865.86

Finding the Fourth Proportional to 507,093,403.78, 700,445,333.21 and 419,341,865.86

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Solution

The fourth proportional to 507,093,403.78, 700,445,333.21 and 419,341,865.86 is: 579,234,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,093,403.78 : 700,445,333.21 = 419,341,865.86 : x
  2. Step 2: Convert to fraction form
    507,093,403.78/700,445,333.21 = 419,341,865.86/x
  3. Step 3: Cross multiply
    507,093,403.78x = 700,445,333.21 × 419,341,865.86
  4. Step 4: Simplify right side
    507,093,403.78x = 293,726,052,961,210,880
  5. Step 5: Solve for x
    x = 293,726,052,961,210,880/507,093,403.78
  6. Step 6: Final answer
    x = 579,234,615.89

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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.