Finding the Fourth Proportional to 83,328,439.17, 115,033,120.32 and 55,497,464.49
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Solution
The fourth proportional to 83,328,439.17, 115,033,120.32 and 55,497,464.49 is: 76,613,057.60
Step by Step Solution
- Step 1: Write the proportion equation
83,328,439.17 : 115,033,120.32 = 55,497,464.49 : x - Step 2: Convert to fraction form
83,328,439.17/115,033,120.32 = 55,497,464.49/x - Step 3: Cross multiply
83,328,439.17x = 115,033,120.32 × 55,497,464.49 - Step 4: Simplify right side
83,328,439.17x = 6,384,046,510,133,097 - Step 5: Solve for x
x = 6,384,046,510,133,097/83,328,439.17 - Step 6: Final answer
x = 76,613,057.60
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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.