Home / 419,904,741.80-629,857,112.70-147,240,079.40

Finding the Fourth Proportional to 419,904,741.80, 629,857,112.70 and 147,240,079.40

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Solution

The fourth proportional to 419,904,741.80, 629,857,112.70 and 147,240,079.40 is: 220,860,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,741.80 : 629,857,112.70 = 147,240,079.40 : x
  2. Step 2: Convert to fraction form
    419,904,741.80/629,857,112.70 = 147,240,079.40/x
  3. Step 3: Cross multiply
    419,904,741.80x = 629,857,112.70 × 147,240,079.40
  4. Step 4: Simplify right side
    419,904,741.80x = 92,740,211,284,602,752
  5. Step 5: Solve for x
    x = 92,740,211,284,602,752/419,904,741.80
  6. Step 6: Final answer
    x = 220,860,119.10

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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.