Finding the Fourth Proportional to 257,720,731.48, 355,654,662.06 and 141,827,227.48
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Solution
The fourth proportional to 257,720,731.48, 355,654,662.06 and 141,827,227.48 is: 195,721,602.88
Step by Step Solution
- Step 1: Write the proportion equation
257,720,731.48 : 355,654,662.06 = 141,827,227.48 : x - Step 2: Convert to fraction form
257,720,731.48/355,654,662.06 = 141,827,227.48/x - Step 3: Cross multiply
257,720,731.48x = 355,654,662.06 × 141,827,227.48 - Step 4: Simplify right side
257,720,731.48x = 50,441,514,660,306,144 - Step 5: Solve for x
x = 50,441,514,660,306,144/257,720,731.48 - Step 6: Final answer
x = 195,721,602.88
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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.