Finding the Fourth Proportional to 830,734,708.32, 1,246,104,173.21 and 339,447,978.99
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Solution
The fourth proportional to 830,734,708.32, 1,246,104,173.21 and 339,447,978.99 is: 509,172,830.95
Step by Step Solution
- Step 1: Write the proportion equation
830,734,708.32 : 1,246,104,173.21 = 339,447,978.99 : x - Step 2: Convert to fraction form
830,734,708.32/1,246,104,173.21 = 339,447,978.99/x - Step 3: Cross multiply
830,734,708.32x = 1,246,104,173.21 × 339,447,978.99 - Step 4: Simplify right side
830,734,708.32x = 422,987,543,205,442,176 - Step 5: Solve for x
x = 422,987,543,205,442,176/830,734,708.32 - Step 6: Final answer
x = 509,172,830.95
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1.5x scale
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.