Finding the Fourth Proportional to 215,170,995.15, 322,644,362.81 and 76,943,315.79
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Solution
The fourth proportional to 215,170,995.15, 322,644,362.81 and 76,943,315.79 is: 115,374,876.98
Step by Step Solution
- Step 1: Write the proportion equation
215,170,995.15 : 322,644,362.81 = 76,943,315.79 : x - Step 2: Convert to fraction form
215,170,995.15/322,644,362.81 = 76,943,315.79/x - Step 3: Cross multiply
215,170,995.15x = 322,644,362.81 × 76,943,315.79 - Step 4: Simplify right side
215,170,995.15x = 24,825,327,095,168,448 - Step 5: Solve for x
x = 24,825,327,095,168,448/215,170,995.15 - Step 6: Final answer
x = 115,374,876.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.