Finding the Fourth Proportional to 392,272,983.68, 541,374,980.47 and 292,981,426.79
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Solution
The fourth proportional to 392,272,983.68, 541,374,980.47 and 292,981,426.79 is: 404,342,946.89
Step by Step Solution
- Step 1: Write the proportion equation
392,272,983.68 : 541,374,980.47 = 292,981,426.79 : x - Step 2: Convert to fraction form
392,272,983.68/541,374,980.47 = 292,981,426.79/x - Step 3: Cross multiply
392,272,983.68x = 541,374,980.47 × 292,981,426.79 - Step 4: Simplify right side
392,272,983.68x = 158,612,814,207,129,984 - Step 5: Solve for x
x = 158,612,814,207,129,984/392,272,983.68 - Step 6: Final answer
x = 404,342,946.89
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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.