Home / 419,904,823.10-629,857,234.65-386,742,904.70

Finding the Fourth Proportional to 419,904,823.10, 629,857,234.65 and 386,742,904.70

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Solution

The fourth proportional to 419,904,823.10, 629,857,234.65 and 386,742,904.70 is: 580,114,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,823.10 : 629,857,234.65 = 386,742,904.70 : x
  2. Step 2: Convert to fraction form
    419,904,823.10/629,857,234.65 = 386,742,904.70/x
  3. Step 3: Cross multiply
    419,904,823.10x = 629,857,234.65 × 386,742,904.70
  4. Step 4: Simplify right side
    419,904,823.10x = 243,592,816,474,850,464
  5. Step 5: Solve for x
    x = 243,592,816,474,850,464/419,904,823.10
  6. Step 6: Final answer
    x = 580,114,357.05

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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.