Finding the Fourth Proportional to 492,298,290.79, 679,363,647.41 and 269,278,021.58
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Solution
The fourth proportional to 492,298,290.79, 679,363,647.41 and 269,278,021.58 is: 371,599,297.28
Step by Step Solution
- Step 1: Write the proportion equation
492,298,290.79 : 679,363,647.41 = 269,278,021.58 : x - Step 2: Convert to fraction form
492,298,290.79/679,363,647.41 = 269,278,021.58/x - Step 3: Cross multiply
492,298,290.79x = 679,363,647.41 × 269,278,021.58 - Step 4: Simplify right side
492,298,290.79x = 182,937,698,908,289,504 - Step 5: Solve for x
x = 182,937,698,908,289,504/492,298,290.79 - Step 6: Final answer
x = 371,599,297.28
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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.