Finding the Fourth Proportional to 98,373,141.99, 135,766,905.09 and 57,120,033.15
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Solution
The fourth proportional to 98,373,141.99, 135,766,905.09 and 57,120,033.15 is: 78,832,595.59
Step by Step Solution
- Step 1: Write the proportion equation
98,373,141.99 : 135,766,905.09 = 57,120,033.15 : x - Step 2: Convert to fraction form
98,373,141.99/135,766,905.09 = 57,120,033.15/x - Step 3: Cross multiply
98,373,141.99x = 135,766,905.09 × 57,120,033.15 - Step 4: Simplify right side
98,373,141.99x = 7,755,010,119,413,704 - Step 5: Solve for x
x = 7,755,010,119,413,704/98,373,141.99 - Step 6: Final answer
x = 78,832,595.59
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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.