Finding the Fourth Proportional to 1,993,069,577.40, 2,989,588,619.70 and 519,206,537.40
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Solution
The fourth proportional to 1,993,069,577.40, 2,989,588,619.70 and 519,206,537.40 is: 778,805,704.07
Step by Step Solution
- Step 1: Write the proportion equation
1,993,069,577.40 : 2,989,588,619.70 = 519,206,537.40 : x - Step 2: Convert to fraction form
1,993,069,577.40/2,989,588,619.70 = 519,206,537.40/x - Step 3: Cross multiply
1,993,069,577.40x = 2,989,588,619.70 × 519,206,537.40 - Step 4: Simplify right side
1,993,069,577.40x = 1,552,213,955,484,882,176 - Step 5: Solve for x
x = 1,552,213,955,484,882,176/1,993,069,577.40 - Step 6: Final answer
x = 778,805,704.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.