Finding the Fourth Proportional to 769,261,090.58, 1,061,170,908 and 467,938,526.96
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Solution
The fourth proportional to 769,261,090.58, 1,061,170,908 and 467,938,526.96 is: 645,506,132.60
Step by Step Solution
- Step 1: Write the proportion equation
769,261,090.58 : 1,061,170,908 = 467,938,526.96 : x - Step 2: Convert to fraction form
769,261,090.58/1,061,170,908 = 467,938,526.96/x - Step 3: Cross multiply
769,261,090.58x = 1,061,170,908 × 467,938,526.96 - Step 4: Simplify right side
769,261,090.58x = 496,562,751,542,325,632 - Step 5: Solve for x
x = 496,562,751,542,325,632/769,261,090.58 - Step 6: Final answer
x = 645,506,132.60
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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.