Finding the Fourth Proportional to 1,133,833,966.92, 1,564,690,861.35 and 612,313,198.92
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Solution
The fourth proportional to 1,133,833,966.92, 1,564,690,861.35 and 612,313,198.92 is: 844,992,207.49
Step by Step Solution
- Step 1: Write the proportion equation
1,133,833,966.92 : 1,564,690,861.35 = 612,313,198.92 : x - Step 2: Convert to fraction form
1,133,833,966.92/1,564,690,861.35 = 612,313,198.92/x - Step 3: Cross multiply
1,133,833,966.92x = 1,564,690,861.35 × 612,313,198.92 - Step 4: Simplify right side
1,133,833,966.92x = 958,080,866,634,108,544 - Step 5: Solve for x
x = 958,080,866,634,108,544/1,133,833,966.92 - Step 6: Final answer
x = 844,992,207.49
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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.