Finding the Fourth Proportional to 144,621,564.88, 199,638,822.80 and 97,642,278.76
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Solution
The fourth proportional to 144,621,564.88, 199,638,822.80 and 97,642,278.76 is: 134,787,571.99
Step by Step Solution
- Step 1: Write the proportion equation
144,621,564.88 : 199,638,822.80 = 97,642,278.76 : x - Step 2: Convert to fraction form
144,621,564.88/199,638,822.80 = 97,642,278.76/x - Step 3: Cross multiply
144,621,564.88x = 199,638,822.80 × 97,642,278.76 - Step 4: Simplify right side
144,621,564.88x = 19,493,189,587,155,844 - Step 5: Solve for x
x = 19,493,189,587,155,844/144,621,564.88 - Step 6: Final answer
x = 134,787,571.99
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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.