Finding the Fourth Proportional to 399,893,395.95, 551,719,231.56 and 232,594,143.43
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Solution
The fourth proportional to 399,893,395.95, 551,719,231.56 and 232,594,143.43 is: 320,902,178.88
Step by Step Solution
- Step 1: Write the proportion equation
399,893,395.95 : 551,719,231.56 = 232,594,143.43 : x - Step 2: Convert to fraction form
399,893,395.95/551,719,231.56 = 232,594,143.43/x - Step 3: Cross multiply
399,893,395.95x = 551,719,231.56 × 232,594,143.43 - Step 4: Simplify right side
399,893,395.95x = 128,326,662,078,556,016 - Step 5: Solve for x
x = 128,326,662,078,556,016/399,893,395.95 - Step 6: Final answer
x = 320,902,178.88
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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.