Finding the Fourth Proportional to 371,148,076.99, 512,175,412.67 and 206,135,777.71
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Solution
The fourth proportional to 371,148,076.99, 512,175,412.67 and 206,135,777.71 is: 284,462,411.53
Step by Step Solution
- Step 1: Write the proportion equation
371,148,076.99 : 512,175,412.67 = 206,135,777.71 : x - Step 2: Convert to fraction form
371,148,076.99/512,175,412.67 = 206,135,777.71/x - Step 3: Cross multiply
371,148,076.99x = 512,175,412.67 × 206,135,777.71 - Step 4: Simplify right side
371,148,076.99x = 105,577,677,014,670,640 - Step 5: Solve for x
x = 105,577,677,014,670,640/371,148,076.99 - Step 6: Final answer
x = 284,462,411.53
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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.