Finding the Fourth Proportional to 354,317,290.80, 531,475,936.20 and 340,712,401.20
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Solution
The fourth proportional to 354,317,290.80, 531,475,936.20 and 340,712,401.20 is: 511,068,601.80
Step by Step Solution
- Step 1: Write the proportion equation
354,317,290.80 : 531,475,936.20 = 340,712,401.20 : x - Step 2: Convert to fraction form
354,317,290.80/531,475,936.20 = 340,712,401.20/x - Step 3: Cross multiply
354,317,290.80x = 531,475,936.20 × 340,712,401.20 - Step 4: Simplify right side
354,317,290.80x = 181,080,442,402,720,000 - Step 5: Solve for x
x = 181,080,442,402,720,000/354,317,290.80 - Step 6: Final answer
x = 511,068,601.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.