Home / 419,904,051.60-629,856,077.40-408,566,643.60

Finding the Fourth Proportional to 419,904,051.60, 629,856,077.40 and 408,566,643.60

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Solution

The fourth proportional to 419,904,051.60, 629,856,077.40 and 408,566,643.60 is: 612,849,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,051.60 : 629,856,077.40 = 408,566,643.60 : x
  2. Step 2: Convert to fraction form
    419,904,051.60/629,856,077.40 = 408,566,643.60/x
  3. Step 3: Cross multiply
    419,904,051.60x = 629,856,077.40 × 408,566,643.60
  4. Step 4: Simplify right side
    419,904,051.60x = 257,338,183,494,379,808
  5. Step 5: Solve for x
    x = 257,338,183,494,379,808/419,904,051.60
  6. Step 6: Final answer
    x = 612,849,965.40

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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.