Finding the Fourth Proportional to 7,349,143.68, 10,138,545.18 and 4,292,009.28
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Solution
The fourth proportional to 7,349,143.68, 10,138,545.18 and 4,292,009.28 is: 5,921,061.27
Step by Step Solution
- Step 1: Write the proportion equation
7,349,143.68 : 10,138,545.18 = 4,292,009.28 : x - Step 2: Convert to fraction form
7,349,143.68/10,138,545.18 = 4,292,009.28/x - Step 3: Cross multiply
7,349,143.68x = 10,138,545.18 × 4,292,009.28 - Step 4: Simplify right side
7,349,143.68x = 43,514,729,998,259.27 - Step 5: Solve for x
x = 43,514,729,998,259.27/7,349,143.68 - Step 6: Final answer
x = 5,921,061.27
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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.