Finding the Fourth Proportional to 1,133,833,965.42, 1,564,690,859.28 and 612,313,197.42
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Solution
The fourth proportional to 1,133,833,965.42, 1,564,690,859.28 and 612,313,197.42 is: 844,992,205.42
Step by Step Solution
- Step 1: Write the proportion equation
1,133,833,965.42 : 1,564,690,859.28 = 612,313,197.42 : x - Step 2: Convert to fraction form
1,133,833,965.42/1,564,690,859.28 = 612,313,197.42/x - Step 3: Cross multiply
1,133,833,965.42x = 1,564,690,859.28 × 612,313,197.42 - Step 4: Simplify right side
1,133,833,965.42x = 958,080,863,019,584,000 - Step 5: Solve for x
x = 958,080,863,019,584,000/1,133,833,965.42 - Step 6: Final answer
x = 844,992,205.42
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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.