Finding the Fourth Proportional to 1,008,519,797.42, 1,391,759,177.57 and 562,511,908.49
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Solution
The fourth proportional to 1,008,519,797.42, 1,391,759,177.57 and 562,511,908.49 is: 776,267,469.55
Step by Step Solution
- Step 1: Write the proportion equation
1,008,519,797.42 : 1,391,759,177.57 = 562,511,908.49 : x - Step 2: Convert to fraction form
1,008,519,797.42/1,391,759,177.57 = 562,511,908.49/x - Step 3: Cross multiply
1,008,519,797.42x = 1,391,759,177.57 × 562,511,908.49 - Step 4: Simplify right side
1,008,519,797.42x = 782,881,111,130,561,024 - Step 5: Solve for x
x = 782,881,111,130,561,024/1,008,519,797.42 - Step 6: Final answer
x = 776,267,469.55
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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.