Finding the Fourth Proportional to 309,893,943.15, 427,648,473.99 and 170,677,658.79
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Solution
The fourth proportional to 309,893,943.15, 427,648,473.99 and 170,677,658.79 is: 235,532,323.04
Step by Step Solution
- Step 1: Write the proportion equation
309,893,943.15 : 427,648,473.99 = 170,677,658.79 : x - Step 2: Convert to fraction form
309,893,943.15/427,648,473.99 = 170,677,658.79/x - Step 3: Cross multiply
309,893,943.15x = 427,648,473.99 × 170,677,658.79 - Step 4: Simplify right side
309,893,943.15x = 72,990,040,325,729,408 - Step 5: Solve for x
x = 72,990,040,325,729,408/309,893,943.15 - Step 6: Final answer
x = 235,532,323.04
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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.