Finding the Fourth Proportional to 91,772,376.20, 137,658,564.30 and 84,119,625.80
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Solution
The fourth proportional to 91,772,376.20, 137,658,564.30 and 84,119,625.80 is: 126,179,438.70
Step by Step Solution
- Step 1: Write the proportion equation
91,772,376.20 : 137,658,564.30 = 84,119,625.80 : x - Step 2: Convert to fraction form
91,772,376.20/137,658,564.30 = 84,119,625.80/x - Step 3: Cross multiply
91,772,376.20x = 137,658,564.30 × 84,119,625.80 - Step 4: Simplify right side
91,772,376.20x = 11,579,786,917,081,240 - Step 5: Solve for x
x = 11,579,786,917,081,240/91,772,376.20 - Step 6: Final answer
x = 126,179,438.70
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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.