Home / 419,904,491.60-629,856,737.40-384,191,656.40

Finding the Fourth Proportional to 419,904,491.60, 629,856,737.40 and 384,191,656.40

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Solution

The fourth proportional to 419,904,491.60, 629,856,737.40 and 384,191,656.40 is: 576,287,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,491.60 : 629,856,737.40 = 384,191,656.40 : x
  2. Step 2: Convert to fraction form
    419,904,491.60/629,856,737.40 = 384,191,656.40/x
  3. Step 3: Cross multiply
    419,904,491.60x = 629,856,737.40 × 384,191,656.40
  4. Step 4: Simplify right side
    419,904,491.60x = 241,985,703,236,405,792
  5. Step 5: Solve for x
    x = 241,985,703,236,405,792/419,904,491.60
  6. Step 6: Final answer
    x = 576,287,484.60

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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.