Finding the Fourth Proportional to 354,996,982.20, 532,243,530.90 and 136,562,921.40
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Solution
The fourth proportional to 354,996,982.20, 532,243,530.90 and 136,562,921.40 is: 204,747,462.99
Step by Step Solution
- Step 1: Write the proportion equation
354,996,982.20 : 532,243,530.90 = 136,562,921.40 : x - Step 2: Convert to fraction form
354,996,982.20/532,243,530.90 = 136,562,921.40/x - Step 3: Cross multiply
354,996,982.20x = 532,243,530.90 × 136,562,921.40 - Step 4: Simplify right side
354,996,982.20x = 72,684,731,475,955,168 - Step 5: Solve for x
x = 72,684,731,475,955,168/354,996,982.20 - Step 6: Final answer
x = 204,747,462.99
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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.