Home / 746,428,814.20-1,118,822,075.70-261,505,012.60

Finding the Fourth Proportional to 746,428,814.20, 1,118,822,075.70 and 261,505,012.60

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Solution

The fourth proportional to 746,428,814.20, 1,118,822,075.70 and 261,505,012.60 is: 391,969,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,428,814.20 : 1,118,822,075.70 = 261,505,012.60 : x
  2. Step 2: Convert to fraction form
    746,428,814.20/1,118,822,075.70 = 261,505,012.60/x
  3. Step 3: Cross multiply
    746,428,814.20x = 1,118,822,075.70 × 261,505,012.60
  4. Step 4: Simplify right side
    746,428,814.20x = 292,577,581,003,086,656
  5. Step 5: Solve for x
    x = 292,577,581,003,086,656/746,428,814.20
  6. Step 6: Final answer
    x = 391,969,837.49

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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.