Finding the Fourth Proportional to 562,837,746.78, 776,716,165.26 and 311,958,318.18
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Solution
The fourth proportional to 562,837,746.78, 776,716,165.26 and 311,958,318.18 is: 430,502,520.49
Step by Step Solution
- Step 1: Write the proportion equation
562,837,746.78 : 776,716,165.26 = 311,958,318.18 : x - Step 2: Convert to fraction form
562,837,746.78/776,716,165.26 = 311,958,318.18/x - Step 3: Cross multiply
562,837,746.78x = 776,716,165.26 × 311,958,318.18 - Step 4: Simplify right side
562,837,746.78x = 242,303,068,617,728,544 - Step 5: Solve for x
x = 242,303,068,617,728,544/562,837,746.78 - Step 6: Final answer
x = 430,502,520.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.