Finding the Fourth Proportional to 129,220,336.84, 193,788,566.70 and 42,935,572.84
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Solution
The fourth proportional to 129,220,336.84, 193,788,566.70 and 42,935,572.84 is: 64,389,424.49
Step by Step Solution
- Step 1: Write the proportion equation
129,220,336.84 : 193,788,566.70 = 42,935,572.84 : x - Step 2: Convert to fraction form
129,220,336.84/193,788,566.70 = 42,935,572.84/x - Step 3: Cross multiply
129,220,336.84x = 193,788,566.70 × 42,935,572.84 - Step 4: Simplify right side
129,220,336.84x = 8,320,423,121,107,049 - Step 5: Solve for x
x = 8,320,423,121,107,049/129,220,336.84 - Step 6: Final answer
x = 64,389,424.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.