Finding the Fourth Proportional to 71,568,779,386.88, 98,765,213,869.44 and 39,453,436,015.02
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Solution
The fourth proportional to 71,568,779,386.88, 98,765,213,869.44 and 39,453,436,015.02 is: 54,445,906,151.95
Step by Step Solution
- Step 1: Write the proportion equation
71,568,779,386.88 : 98,765,213,869.44 = 39,453,436,015.02 : x - Step 2: Convert to fraction form
71,568,779,386.88/98,765,213,869.44 = 39,453,436,015.02/x - Step 3: Cross multiply
71,568,779,386.88x = 98,765,213,869.44 × 39,453,436,015.02 - Step 4: Simplify right side
71,568,779,386.88x = 3,896,627,045,907,716,636,672 - Step 5: Solve for x
x = 3,896,627,045,907,716,636,672/71,568,779,386.88 - Step 6: Final answer
x = 54,445,906,151.95
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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.