Finding the Fourth Proportional to 77,027,580.15, 106,308,960.66 and 47,668,368.12
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Solution
The fourth proportional to 77,027,580.15, 106,308,960.66 and 47,668,368.12 is: 65,789,093.48
Step by Step Solution
- Step 1: Write the proportion equation
77,027,580.15 : 106,308,960.66 = 47,668,368.12 : x - Step 2: Convert to fraction form
77,027,580.15/106,308,960.66 = 47,668,368.12/x - Step 3: Cross multiply
77,027,580.15x = 106,308,960.66 × 47,668,368.12 - Step 4: Simplify right side
77,027,580.15x = 5,067,574,671,195,478 - Step 5: Solve for x
x = 5,067,574,671,195,478/77,027,580.15 - Step 6: Final answer
x = 65,789,093.48
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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.