Finding the Fourth Proportional to 3,868,243,126.36, 5,338,143,425.08 and 2,174,705,320.15
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Solution
The fourth proportional to 3,868,243,126.36, 5,338,143,425.08 and 2,174,705,320.15 is: 3,001,075,301.38
Step by Step Solution
- Step 1: Write the proportion equation
3,868,243,126.36 : 5,338,143,425.08 = 2,174,705,320.15 : x - Step 2: Convert to fraction form
3,868,243,126.36/5,338,143,425.08 = 2,174,705,320.15/x - Step 3: Cross multiply
3,868,243,126.36x = 5,338,143,425.08 × 2,174,705,320.15 - Step 4: Simplify right side
3,868,243,126.36x = 11,608,888,906,245,218,304 - Step 5: Solve for x
x = 11,608,888,906,245,218,304/3,868,243,126.36 - Step 6: Final answer
x = 3,001,075,301.38
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1.5x scale
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.