Finding the Fourth Proportional to 698,023,147.14, 963,242,957.68 and 380,476,410.26
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Solution
The fourth proportional to 698,023,147.14, 963,242,957.68 and 380,476,410.26 is: 525,041,646.89
Step by Step Solution
- Step 1: Write the proportion equation
698,023,147.14 : 963,242,957.68 = 380,476,410.26 : x - Step 2: Convert to fraction form
698,023,147.14/963,242,957.68 = 380,476,410.26/x - Step 3: Cross multiply
698,023,147.14x = 963,242,957.68 × 380,476,410.26 - Step 4: Simplify right side
698,023,147.14x = 366,491,222,740,544,064 - Step 5: Solve for x
x = 366,491,222,740,544,064/698,023,147.14 - Step 6: Final answer
x = 525,041,646.89
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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.