Home / 419,904,347.80-629,856,521.70-402,898,235.80

Finding the Fourth Proportional to 419,904,347.80, 629,856,521.70 and 402,898,235.80

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Solution

The fourth proportional to 419,904,347.80, 629,856,521.70 and 402,898,235.80 is: 604,347,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,347.80 : 629,856,521.70 = 402,898,235.80 : x
  2. Step 2: Convert to fraction form
    419,904,347.80/629,856,521.70 = 402,898,235.80/x
  3. Step 3: Cross multiply
    419,904,347.80x = 629,856,521.70 × 402,898,235.80
  4. Step 4: Simplify right side
    419,904,347.80x = 253,768,081,400,054,432
  5. Step 5: Solve for x
    x = 253,768,081,400,054,432/419,904,347.80
  6. Step 6: Final answer
    x = 604,347,353.70

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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.