Finding the Fourth Proportional to 85,696,868.73, 128,528,564.84 and 27,388,905.99
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Solution
The fourth proportional to 85,696,868.73, 128,528,564.84 and 27,388,905.99 is: 41,078,009.40
Step by Step Solution
- Step 1: Write the proportion equation
85,696,868.73 : 128,528,564.84 = 27,388,905.99 : x - Step 2: Convert to fraction form
85,696,868.73/128,528,564.84 = 27,388,905.99/x - Step 3: Cross multiply
85,696,868.73x = 128,528,564.84 × 27,388,905.99 - Step 4: Simplify right side
85,696,868.73x = 3,520,256,779,295,434.50 - Step 5: Solve for x
x = 3,520,256,779,295,434.50/85,696,868.73 - Step 6: Final answer
x = 41,078,009.40
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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.