Home / 419,860,509.52-579,522,760.04-243,705,255.96

Finding the Fourth Proportional to 419,860,509.52, 579,522,760.04 and 243,705,255.96

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Solution

The fourth proportional to 419,860,509.52, 579,522,760.04 and 243,705,255.96 is: 336,380,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,860,509.52 : 579,522,760.04 = 243,705,255.96 : x
  2. Step 2: Convert to fraction form
    419,860,509.52/579,522,760.04 = 243,705,255.96/x
  3. Step 3: Cross multiply
    419,860,509.52x = 579,522,760.04 × 243,705,255.96
  4. Step 4: Simplify right side
    419,860,509.52x = 141,232,742,570,193,856
  5. Step 5: Solve for x
    x = 141,232,742,570,193,856/419,860,509.52
  6. Step 6: Final answer
    x = 336,380,153.33

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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.