Finding the Fourth Proportional to 191,122,657.84, 263,771,659.20 and 108,628,842.88
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Solution
The fourth proportional to 191,122,657.84, 263,771,659.20 and 108,628,842.88 is: 149,920,529.82
Step by Step Solution
- Step 1: Write the proportion equation
191,122,657.84 : 263,771,659.20 = 108,628,842.88 : x - Step 2: Convert to fraction form
191,122,657.84/263,771,659.20 = 108,628,842.88/x - Step 3: Cross multiply
191,122,657.84x = 263,771,659.20 × 108,628,842.88 - Step 4: Simplify right side
191,122,657.84x = 28,653,210,123,433,704 - Step 5: Solve for x
x = 28,653,210,123,433,704/191,122,657.84 - Step 6: Final answer
x = 149,920,529.82
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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.