Finding the Fourth Proportional to 98,373,157.53, 135,766,926.45 and 57,120,048.69
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Solution
The fourth proportional to 98,373,157.53, 135,766,926.45 and 57,120,048.69 is: 78,832,616.99
Step by Step Solution
- Step 1: Write the proportion equation
98,373,157.53 : 135,766,926.45 = 57,120,048.69 : x - Step 2: Convert to fraction form
98,373,157.53/135,766,926.45 = 57,120,048.69/x - Step 3: Cross multiply
98,373,157.53x = 135,766,926.45 × 57,120,048.69 - Step 4: Simplify right side
98,373,157.53x = 7,755,013,449,315,648 - Step 5: Solve for x
x = 7,755,013,449,315,648/98,373,157.53 - Step 6: Final answer
x = 78,832,616.99
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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.