Finding the Fourth Proportional to 491,805,447.99, 678,692,179.58 and 282,957,401.85
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Solution
The fourth proportional to 491,805,447.99, 678,692,179.58 and 282,957,401.85 is: 390,481,595.06
Step by Step Solution
- Step 1: Write the proportion equation
491,805,447.99 : 678,692,179.58 = 282,957,401.85 : x - Step 2: Convert to fraction form
491,805,447.99/678,692,179.58 = 282,957,401.85/x - Step 3: Cross multiply
491,805,447.99x = 678,692,179.58 × 282,957,401.85 - Step 4: Simplify right side
491,805,447.99x = 192,040,975,788,455,680 - Step 5: Solve for x
x = 192,040,975,788,455,680/491,805,447.99 - Step 6: Final answer
x = 390,481,595.06
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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.