Finding the Fourth Proportional to 282,955,942.82, 390,475,201.46 and 159,196,324.70
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Solution
The fourth proportional to 282,955,942.82, 390,475,201.46 and 159,196,324.70 is: 219,688,677.82
Step by Step Solution
- Step 1: Write the proportion equation
282,955,942.82 : 390,475,201.46 = 159,196,324.70 : x - Step 2: Convert to fraction form
282,955,942.82/390,475,201.46 = 159,196,324.70/x - Step 3: Cross multiply
282,955,942.82x = 390,475,201.46 × 159,196,324.70 - Step 4: Simplify right side
282,955,942.82x = 62,162,216,958,924,064 - Step 5: Solve for x
x = 62,162,216,958,924,064/282,955,942.82 - Step 6: Final answer
x = 219,688,677.82
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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.