Finding the Fourth Proportional to 71,157,074.84, 98,196,847.26 and 38,562,026.84
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Solution
The fourth proportional to 71,157,074.84, 98,196,847.26 and 38,562,026.84 is: 53,215,642.55
Step by Step Solution
- Step 1: Write the proportion equation
71,157,074.84 : 98,196,847.26 = 38,562,026.84 : x - Step 2: Convert to fraction form
71,157,074.84/98,196,847.26 = 38,562,026.84/x - Step 3: Cross multiply
71,157,074.84x = 98,196,847.26 × 38,562,026.84 - Step 4: Simplify right side
71,157,074.84x = 3,786,669,459,643,501 - Step 5: Solve for x
x = 3,786,669,459,643,501/71,157,074.84 - Step 6: Final answer
x = 53,215,642.55
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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.