Home / 551,376,810.72-760,877,845.65-300,475,874.70

Finding the Fourth Proportional to 551,376,810.72, 760,877,845.65 and 300,475,874.70

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Solution

The fourth proportional to 551,376,810.72, 760,877,845.65 and 300,475,874.70 is: 414,644,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,376,810.72 : 760,877,845.65 = 300,475,874.70 : x
  2. Step 2: Convert to fraction form
    551,376,810.72/760,877,845.65 = 300,475,874.70/x
  3. Step 3: Cross multiply
    551,376,810.72x = 760,877,845.65 × 300,475,874.70
  4. Step 4: Simplify right side
    551,376,810.72x = 228,625,436,211,535,328
  5. Step 5: Solve for x
    x = 228,625,436,211,535,328/551,376,810.72
  6. Step 6: Final answer
    x = 414,644,634.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.