Finding the Fourth Proportional to 692,034,943.68, 1,038,115,489.23 and 225,576,639.18
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Solution
The fourth proportional to 692,034,943.68, 1,038,115,489.23 and 225,576,639.18 is: 338,385,518.36
Step by Step Solution
- Step 1: Write the proportion equation
692,034,943.68 : 1,038,115,489.23 = 225,576,639.18 : x - Step 2: Convert to fraction form
692,034,943.68/1,038,115,489.23 = 225,576,639.18/x - Step 3: Cross multiply
692,034,943.68x = 1,038,115,489.23 × 225,576,639.18 - Step 4: Simplify right side
692,034,943.68x = 234,174,603,141,204,896 - Step 5: Solve for x
x = 234,174,603,141,204,896/692,034,943.68 - Step 6: Final answer
x = 338,385,518.36
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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.