Finding the Fourth Proportional to 1,616,831,999.20, 2,425,247,998.80 and 882,167,960.80
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Solution
The fourth proportional to 1,616,831,999.20, 2,425,247,998.80 and 882,167,960.80 is: 1,323,251,941.20
Step by Step Solution
- Step 1: Write the proportion equation
1,616,831,999.20 : 2,425,247,998.80 = 882,167,960.80 : x - Step 2: Convert to fraction form
1,616,831,999.20/2,425,247,998.80 = 882,167,960.80/x - Step 3: Cross multiply
1,616,831,999.20x = 2,425,247,998.80 × 882,167,960.80 - Step 4: Simplify right side
1,616,831,999.20x = 2,139,476,081,535,676,928 - Step 5: Solve for x
x = 2,139,476,081,535,676,928/1,616,831,999.20 - Step 6: Final answer
x = 1,323,251,941.20
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1.5x scale
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.