Finding the Fourth Proportional to 372,381,733.55, 513,867,799.96 and 205,114,394.00
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Solution
The fourth proportional to 372,381,733.55, 513,867,799.96 and 205,114,394.00 is: 283,047,402.40
Step by Step Solution
- Step 1: Write the proportion equation
372,381,733.55 : 513,867,799.96 = 205,114,394.00 : x - Step 2: Convert to fraction form
372,381,733.55/513,867,799.96 = 205,114,394.00/x - Step 3: Cross multiply
372,381,733.55x = 513,867,799.96 × 205,114,394.00 - Step 4: Simplify right side
372,381,733.55x = 105,401,682,381,826,496 - Step 5: Solve for x
x = 105,401,682,381,826,496/372,381,733.55 - Step 6: Final answer
x = 283,047,402.40
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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.