Finding the Fourth Proportional to 125,272,617.68, 172,875,838.65 and 69,526,434.80
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Solution
The fourth proportional to 125,272,617.68, 172,875,838.65 and 69,526,434.80 is: 95,946,272.59
Step by Step Solution
- Step 1: Write the proportion equation
125,272,617.68 : 172,875,838.65 = 69,526,434.80 : x - Step 2: Convert to fraction form
125,272,617.68/172,875,838.65 = 69,526,434.80/x - Step 3: Cross multiply
125,272,617.68x = 172,875,838.65 × 69,526,434.80 - Step 4: Simplify right side
125,272,617.68x = 12,019,440,723,530,166 - Step 5: Solve for x
x = 12,019,440,723,530,166/125,272,617.68 - Step 6: Final answer
x = 95,946,272.59
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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.