Home / 413,923,704.20-620,885,556.30-380,480,683.40

Finding the Fourth Proportional to 413,923,704.20, 620,885,556.30 and 380,480,683.40

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Solution

The fourth proportional to 413,923,704.20, 620,885,556.30 and 380,480,683.40 is: 570,721,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,923,704.20 : 620,885,556.30 = 380,480,683.40 : x
  2. Step 2: Convert to fraction form
    413,923,704.20/620,885,556.30 = 380,480,683.40/x
  3. Step 3: Cross multiply
    413,923,704.20x = 620,885,556.30 × 380,480,683.40
  4. Step 4: Simplify right side
    413,923,704.20x = 236,234,960,774,213,152
  5. Step 5: Solve for x
    x = 236,234,960,774,213,152/413,923,704.20
  6. Step 6: Final answer
    x = 570,721,025.10

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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.