Finding the Fourth Proportional to 3,938,214,555.84, 5,436,409,488.48 and 2,453,836,069.92
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Solution
The fourth proportional to 3,938,214,555.84, 5,436,409,488.48 and 2,453,836,069.92 is: 3,387,336,445.12
Step by Step Solution
- Step 1: Write the proportion equation
3,938,214,555.84 : 5,436,409,488.48 = 2,453,836,069.92 : x - Step 2: Convert to fraction form
3,938,214,555.84/5,436,409,488.48 = 2,453,836,069.92/x - Step 3: Cross multiply
3,938,214,555.84x = 5,436,409,488.48 × 2,453,836,069.92 - Step 4: Simplify right side
3,938,214,555.84x = 13,340,057,693,687,560,192 - Step 5: Solve for x
x = 13,340,057,693,687,560,192/3,938,214,555.84 - Step 6: Final answer
x = 3,387,336,445.12
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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.