Home / 570,737,772.32-787,622,157.20-309,977,388.32

Finding the Fourth Proportional to 570,737,772.32, 787,622,157.20 and 309,977,388.32

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Solution

The fourth proportional to 570,737,772.32, 787,622,157.20 and 309,977,388.32 is: 427,770,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,737,772.32 : 787,622,157.20 = 309,977,388.32 : x
  2. Step 2: Convert to fraction form
    570,737,772.32/787,622,157.20 = 309,977,388.32/x
  3. Step 3: Cross multiply
    570,737,772.32x = 787,622,157.20 × 309,977,388.32
  4. Step 4: Simplify right side
    570,737,772.32x = 244,145,059,271,820,480
  5. Step 5: Solve for x
    x = 244,145,059,271,820,480/570,737,772.32
  6. Step 6: Final answer
    x = 427,770,985.40

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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.