Home / 412,152,080.20-618,228,120.30-291,219,728.20

Finding the Fourth Proportional to 412,152,080.20, 618,228,120.30 and 291,219,728.20

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Solution

The fourth proportional to 412,152,080.20, 618,228,120.30 and 291,219,728.20 is: 436,829,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,152,080.20 : 618,228,120.30 = 291,219,728.20 : x
  2. Step 2: Convert to fraction form
    412,152,080.20/618,228,120.30 = 291,219,728.20/x
  3. Step 3: Cross multiply
    412,152,080.20x = 618,228,120.30 × 291,219,728.20
  4. Step 4: Simplify right side
    412,152,080.20x = 180,040,225,159,362,880
  5. Step 5: Solve for x
    x = 180,040,225,159,362,880/412,152,080.20
  6. Step 6: Final answer
    x = 436,829,592.30

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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.