Finding the Fourth Proportional to 39,128,138.30, 58,703,566.93 and 15,772,828.17
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Solution
The fourth proportional to 39,128,138.30, 58,703,566.93 and 15,772,828.17 is: 23,663,821.34
Step by Step Solution
- Step 1: Write the proportion equation
39,128,138.30 : 58,703,566.93 = 15,772,828.17 : x - Step 2: Convert to fraction form
39,128,138.30/58,703,566.93 = 15,772,828.17/x - Step 3: Cross multiply
39,128,138.30x = 58,703,566.93 × 15,772,828.17 - Step 4: Simplify right side
39,128,138.30x = 925,921,274,152,984.38 - Step 5: Solve for x
x = 925,921,274,152,984.38/39,128,138.30 - Step 6: Final answer
x = 23,663,821.34
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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.