Finding the Fourth Proportional to 3,868,243,140.96, 5,338,143,445.16 and 2,174,705,334.74
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Solution
The fourth proportional to 3,868,243,140.96, 5,338,143,445.16 and 2,174,705,334.74 is: 3,001,075,321.48
Step by Step Solution
- Step 1: Write the proportion equation
3,868,243,140.96 : 5,338,143,445.16 = 2,174,705,334.74 : x - Step 2: Convert to fraction form
3,868,243,140.96/5,338,143,445.16 = 2,174,705,334.74/x - Step 3: Cross multiply
3,868,243,140.96x = 5,338,143,445.16 × 2,174,705,334.74 - Step 4: Simplify right side
3,868,243,140.96x = 11,608,889,027,815,280,640 - Step 5: Solve for x
x = 11,608,889,027,815,280,640/3,868,243,140.96 - Step 6: Final answer
x = 3,001,075,321.48
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Double scale
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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.