Finding the Fourth Proportional to 690,947,795.79, 1,036,831,235.35 and 254,554,686.49
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Solution
The fourth proportional to 690,947,795.79, 1,036,831,235.35 and 254,554,686.49 is: 381,982,910.53
Step by Step Solution
- Step 1: Write the proportion equation
690,947,795.79 : 1,036,831,235.35 = 254,554,686.49 : x - Step 2: Convert to fraction form
690,947,795.79/1,036,831,235.35 = 254,554,686.49/x - Step 3: Cross multiply
690,947,795.79x = 1,036,831,235.35 × 254,554,686.49 - Step 4: Simplify right side
690,947,795.79x = 263,930,250,057,558,656 - Step 5: Solve for x
x = 263,930,250,057,558,656/690,947,795.79 - Step 6: Final answer
x = 381,982,910.53
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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.