Finding the Fourth Proportional to 517,103,647.45, 776,078,485.58 and 513,072,569.05
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Solution
The fourth proportional to 517,103,647.45, 776,078,485.58 and 513,072,569.05 is: 770,028,570.37
Step by Step Solution
- Step 1: Write the proportion equation
517,103,647.45 : 776,078,485.58 = 513,072,569.05 : x - Step 2: Convert to fraction form
517,103,647.45/776,078,485.58 = 513,072,569.05/x - Step 3: Cross multiply
517,103,647.45x = 776,078,485.58 × 513,072,569.05 - Step 4: Simplify right side
517,103,647.45x = 398,184,582,378,398,656 - Step 5: Solve for x
x = 398,184,582,378,398,656/517,103,647.45 - Step 6: Final answer
x = 770,028,570.37
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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.