Finding the Fourth Proportional to 789,118,574.40, 1,183,752,511.20 and 214,689,902.40
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Solution
The fourth proportional to 789,118,574.40, 1,183,752,511.20 and 214,689,902.40 is: 322,055,162.99
Step by Step Solution
- Step 1: Write the proportion equation
789,118,574.40 : 1,183,752,511.20 = 214,689,902.40 : x - Step 2: Convert to fraction form
789,118,574.40/1,183,752,511.20 = 214,689,902.40/x - Step 3: Cross multiply
789,118,574.40x = 1,183,752,511.20 × 214,689,902.40 - Step 4: Simplify right side
789,118,574.40x = 254,139,711,095,282,912 - Step 5: Solve for x
x = 254,139,711,095,282,912/789,118,574.40 - Step 6: Final answer
x = 322,055,162.99
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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.