Finding the Fourth Proportional to 99,203,746.91, 136,967,975.40 and 88,717,227.71
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Solution
The fourth proportional to 99,203,746.91, 136,967,975.40 and 88,717,227.71 is: 122,489,517.19
Step by Step Solution
- Step 1: Write the proportion equation
99,203,746.91 : 136,967,975.40 = 88,717,227.71 : x - Step 2: Convert to fraction form
99,203,746.91/136,967,975.40 = 88,717,227.71/x - Step 3: Cross multiply
99,203,746.91x = 136,967,975.40 × 88,717,227.71 - Step 4: Simplify right side
99,203,746.91x = 12,151,419,061,854,638 - Step 5: Solve for x
x = 12,151,419,061,854,638/99,203,746.91 - Step 6: Final answer
x = 122,489,517.19
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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.