Finding the Fourth Proportional to 28,539,129.51, 39,319,359.06 and 27,178,640.55
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Solution
The fourth proportional to 28,539,129.51, 39,319,359.06 and 27,178,640.55 is: 37,444,965.73
Step by Step Solution
- Step 1: Write the proportion equation
28,539,129.51 : 39,319,359.06 = 27,178,640.55 : x - Step 2: Convert to fraction form
28,539,129.51/39,319,359.06 = 27,178,640.55/x - Step 3: Cross multiply
28,539,129.51x = 39,319,359.06 × 27,178,640.55 - Step 4: Simplify right side
28,539,129.51x = 1,068,646,726,548,126 - Step 5: Solve for x
x = 1,068,646,726,548,126/28,539,129.51 - Step 6: Final answer
x = 37,444,965.73
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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.