Finding the Fourth Proportional to 55,887,718.55, 77,125,055.16 and 31,107,371.95
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Solution
The fourth proportional to 55,887,718.55, 77,125,055.16 and 31,107,371.95 is: 42,928,175.27
Step by Step Solution
- Step 1: Write the proportion equation
55,887,718.55 : 77,125,055.16 = 31,107,371.95 : x - Step 2: Convert to fraction form
55,887,718.55/77,125,055.16 = 31,107,371.95/x - Step 3: Cross multiply
55,887,718.55x = 77,125,055.16 × 31,107,371.95 - Step 4: Simplify right side
55,887,718.55x = 2,399,157,777,333,574 - Step 5: Solve for x
x = 2,399,157,777,333,574/55,887,718.55 - Step 6: Final answer
x = 42,928,175.27
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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.