Finding the Fourth Proportional to 558,815,755.57, 771,130,990.30 and 307,906,106.17
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Solution
The fourth proportional to 558,815,755.57, 771,130,990.30 and 307,906,106.17 is: 424,891,278.04
Step by Step Solution
- Step 1: Write the proportion equation
558,815,755.57 : 771,130,990.30 = 307,906,106.17 : x - Step 2: Convert to fraction form
558,815,755.57/771,130,990.30 = 307,906,106.17/x - Step 3: Cross multiply
558,815,755.57x = 771,130,990.30 × 307,906,106.17 - Step 4: Simplify right side
558,815,755.57x = 237,435,940,570,289,024 - Step 5: Solve for x
x = 237,435,940,570,289,024/558,815,755.57 - Step 6: Final answer
x = 424,891,278.04
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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.