Finding the Fourth Proportional to 519,959,403.90, 716,338,028.70 and 363,078,020.70
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Solution
The fourth proportional to 519,959,403.90, 716,338,028.70 and 363,078,020.70 is: 500,205,576.94
Step by Step Solution
- Step 1: Write the proportion equation
519,959,403.90 : 716,338,028.70 = 363,078,020.70 : x - Step 2: Convert to fraction form
519,959,403.90/716,338,028.70 = 363,078,020.70/x - Step 3: Cross multiply
519,959,403.90x = 716,338,028.70 × 363,078,020.70 - Step 4: Simplify right side
519,959,403.90x = 260,086,593,612,535,808 - Step 5: Solve for x
x = 260,086,593,612,535,808/519,959,403.90 - Step 6: Final answer
x = 500,205,576.94
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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.