Finding the Fourth Proportional to 57,148,202.66, 78,864,458.37 and 31,042,739.99
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Solution
The fourth proportional to 57,148,202.66, 78,864,458.37 and 31,042,739.99 is: 42,838,947.88
Step by Step Solution
- Step 1: Write the proportion equation
57,148,202.66 : 78,864,458.37 = 31,042,739.99 : x - Step 2: Convert to fraction form
57,148,202.66/78,864,458.37 = 31,042,739.99/x - Step 3: Cross multiply
57,148,202.66x = 78,864,458.37 × 31,042,739.99 - Step 4: Simplify right side
57,148,202.66x = 2,448,168,875,237,767 - Step 5: Solve for x
x = 2,448,168,875,237,767/57,148,202.66 - Step 6: Final answer
x = 42,838,947.88
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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.