Finding the Fourth Proportional to 98,118,536.65, 135,397,478.63 and 54,063,070.07
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Solution
The fourth proportional to 98,118,536.65, 135,397,478.63 and 54,063,070.07 is: 74,603,674.54
Step by Step Solution
- Step 1: Write the proportion equation
98,118,536.65 : 135,397,478.63 = 54,063,070.07 : x - Step 2: Convert to fraction form
98,118,536.65/135,397,478.63 = 54,063,070.07/x - Step 3: Cross multiply
98,118,536.65x = 135,397,478.63 × 54,063,070.07 - Step 4: Simplify right side
98,118,536.65x = 7,320,003,373,933,187 - Step 5: Solve for x
x = 7,320,003,373,933,187/98,118,536.65 - Step 6: Final answer
x = 74,603,674.54
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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.