Home / 510,037,624.80-765,623,307.60-280,455,112.80

Finding the Fourth Proportional to 510,037,624.80, 765,623,307.60 and 280,455,112.80

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Solution

The fourth proportional to 510,037,624.80, 765,623,307.60 and 280,455,112.80 is: 420,994,375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,037,624.80 : 765,623,307.60 = 280,455,112.80 : x
  2. Step 2: Convert to fraction form
    510,037,624.80/765,623,307.60 = 280,455,112.80/x
  3. Step 3: Cross multiply
    510,037,624.80x = 765,623,307.60 × 280,455,112.80
  4. Step 4: Simplify right side
    510,037,624.80x = 214,722,971,095,267,104
  5. Step 5: Solve for x
    x = 214,722,971,095,267,104/510,037,624.80
  6. Step 6: Final answer
    x = 420,994,375.03

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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.