Finding the Fourth Proportional to 1,531,822,420.80, 2,294,332,408.80 and 1,259,724,628.80
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Solution
The fourth proportional to 1,531,822,420.80, 2,294,332,408.80 and 1,259,724,628.80 is: 1,886,789,880.32
Step by Step Solution
- Step 1: Write the proportion equation
1,531,822,420.80 : 2,294,332,408.80 = 1,259,724,628.80 : x - Step 2: Convert to fraction form
1,531,822,420.80/2,294,332,408.80 = 1,259,724,628.80/x - Step 3: Cross multiply
1,531,822,420.80x = 2,294,332,408.80 × 1,259,724,628.80 - Step 4: Simplify right side
1,531,822,420.80x = 2,890,227,042,019,389,952 - Step 5: Solve for x
x = 2,890,227,042,019,389,952/1,531,822,420.80 - Step 6: Final answer
x = 1,886,789,880.32
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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.