Finding the Fourth Proportional to 228,080,613.84, 314,757,885.51 and 128,959,231.98
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Solution
The fourth proportional to 228,080,613.84, 314,757,885.51 and 128,959,231.98 is: 177,967,493.56
Step by Step Solution
- Step 1: Write the proportion equation
228,080,613.84 : 314,757,885.51 = 128,959,231.98 : x - Step 2: Convert to fraction form
228,080,613.84/314,757,885.51 = 128,959,231.98/x - Step 3: Cross multiply
228,080,613.84x = 314,757,885.51 × 128,959,231.98 - Step 4: Simplify right side
228,080,613.84x = 40,590,935,175,018,368 - Step 5: Solve for x
x = 40,590,935,175,018,368/228,080,613.84 - Step 6: Final answer
x = 177,967,493.56
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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.