Finding the Fourth Proportional to 191,122,643.84, 263,771,639.88 and 108,628,828.88
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Solution
The fourth proportional to 191,122,643.84, 263,771,639.88 and 108,628,828.88 is: 149,920,510.50
Step by Step Solution
- Step 1: Write the proportion equation
191,122,643.84 : 263,771,639.88 = 108,628,828.88 : x - Step 2: Convert to fraction form
191,122,643.84/263,771,639.88 = 108,628,828.88/x - Step 3: Cross multiply
191,122,643.84x = 263,771,639.88 × 108,628,828.88 - Step 4: Simplify right side
191,122,643.84x = 28,653,204,331,921,500 - Step 5: Solve for x
x = 28,653,204,331,921,500/191,122,643.84 - Step 6: Final answer
x = 149,920,510.50
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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.