Finding the Fourth Proportional to 115,900,509.10, 173,850,763.65 and 69,984,006.70
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Solution
The fourth proportional to 115,900,509.10, 173,850,763.65 and 69,984,006.70 is: 104,976,010.05
Step by Step Solution
- Step 1: Write the proportion equation
115,900,509.10 : 173,850,763.65 = 69,984,006.70 : x - Step 2: Convert to fraction form
115,900,509.10/173,850,763.65 = 69,984,006.70/x - Step 3: Cross multiply
115,900,509.10x = 173,850,763.65 × 69,984,006.70 - Step 4: Simplify right side
115,900,509.10x = 12,166,773,008,081,718 - Step 5: Solve for x
x = 12,166,773,008,081,718/115,900,509.10 - Step 6: Final answer
x = 104,976,010.05
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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.