Finding the Fourth Proportional to 732,804,518.70, 1,099,206,778.05 and 388,430,750.70
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Solution
The fourth proportional to 732,804,518.70, 1,099,206,778.05 and 388,430,750.70 is: 582,646,126.05
Step by Step Solution
- Step 1: Write the proportion equation
732,804,518.70 : 1,099,206,778.05 = 388,430,750.70 : x - Step 2: Convert to fraction form
732,804,518.70/1,099,206,778.05 = 388,430,750.70/x - Step 3: Cross multiply
732,804,518.70x = 1,099,206,778.05 × 388,430,750.70 - Step 4: Simplify right side
732,804,518.70x = 426,965,713,972,489,728 - Step 5: Solve for x
x = 426,965,713,972,489,728/732,804,518.70 - Step 6: Final answer
x = 582,646,126.05
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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.