Finding the Fourth Proportional to 19,266,215,991.29, 28,900,428,377.51 and 5,100,813,655.99
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Solution
The fourth proportional to 19,266,215,991.29, 28,900,428,377.51 and 5,100,813,655.99 is: 7,651,512,876.14
Step by Step Solution
- Step 1: Write the proportion equation
19,266,215,991.29 : 28,900,428,377.51 = 5,100,813,655.99 : x - Step 2: Convert to fraction form
19,266,215,991.29/28,900,428,377.51 = 5,100,813,655.99/x - Step 3: Cross multiply
19,266,215,991.29x = 28,900,428,377.51 × 5,100,813,655.99 - Step 4: Simplify right side
19,266,215,991.29x = 147,415,699,731,835,912,192 - Step 5: Solve for x
x = 147,415,699,731,835,912,192/19,266,215,991.29 - Step 6: Final answer
x = 7,651,512,876.14
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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.