Home / 841,100,855.76-1,261,695,840.12-259,234,750.80

Finding the Fourth Proportional to 841,100,855.76, 1,261,695,840.12 and 259,234,750.80

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Solution

The fourth proportional to 841,100,855.76, 1,261,695,840.12 and 259,234,750.80 is: 388,865,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,100,855.76 : 1,261,695,840.12 = 259,234,750.80 : x
  2. Step 2: Convert to fraction form
    841,100,855.76/1,261,695,840.12 = 259,234,750.80/x
  3. Step 3: Cross multiply
    841,100,855.76x = 1,261,695,840.12 × 259,234,750.80
  4. Step 4: Simplify right side
    841,100,855.76x = 327,075,406,698,904,832
  5. Step 5: Solve for x
    x = 327,075,406,698,904,832/841,100,855.76
  6. Step 6: Final answer
    x = 388,865,858.90

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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.