Finding the Fourth Proportional to 2,528,188,567.58, 3,488,821,426.97 and 1,399,090,396.79
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Solution
The fourth proportional to 2,528,188,567.58, 3,488,821,426.97 and 1,399,090,396.79 is: 1,930,701,141.99
Step by Step Solution
- Step 1: Write the proportion equation
2,528,188,567.58 : 3,488,821,426.97 = 1,399,090,396.79 : x - Step 2: Convert to fraction form
2,528,188,567.58/3,488,821,426.97 = 1,399,090,396.79/x - Step 3: Cross multiply
2,528,188,567.58x = 3,488,821,426.97 × 1,399,090,396.79 - Step 4: Simplify right side
2,528,188,567.58x = 4,881,176,554,595,954,688 - Step 5: Solve for x
x = 4,881,176,554,595,954,688/2,528,188,567.58 - Step 6: Final answer
x = 1,930,701,141.99
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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.