Finding the Fourth Proportional to 543,163,171.08, 749,581,234.68 and 384,676,836.06
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Solution
The fourth proportional to 543,163,171.08, 749,581,234.68 and 384,676,836.06 is: 530,865,406.71
Step by Step Solution
- Step 1: Write the proportion equation
543,163,171.08 : 749,581,234.68 = 384,676,836.06 : x - Step 2: Convert to fraction form
543,163,171.08/749,581,234.68 = 384,676,836.06/x - Step 3: Cross multiply
543,163,171.08x = 749,581,234.68 × 384,676,836.06 - Step 4: Simplify right side
543,163,171.08x = 288,346,537,726,650,752 - Step 5: Solve for x
x = 288,346,537,726,650,752/543,163,171.08 - Step 6: Final answer
x = 530,865,406.71
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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.