Finding the Fourth Proportional to 886,235,128.97, 1,328,164,428.92 and 689,735,819.16
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Solution
The fourth proportional to 886,235,128.97, 1,328,164,428.92 and 689,735,819.16 is: 1,033,678,930.59
Step by Step Solution
- Step 1: Write the proportion equation
886,235,128.97 : 1,328,164,428.92 = 689,735,819.16 : x - Step 2: Convert to fraction form
886,235,128.97/1,328,164,428.92 = 689,735,819.16/x - Step 3: Cross multiply
886,235,128.97x = 1,328,164,428.92 × 689,735,819.16 - Step 4: Simplify right side
886,235,128.97x = 916,082,580,356,861,056 - Step 5: Solve for x
x = 916,082,580,356,861,056/886,235,128.97 - Step 6: Final answer
x = 1,033,678,930.59
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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.