Finding the Fourth Proportional to 15,549,879.06, 21,458,686.41 and 8,580,620.70
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Solution
The fourth proportional to 15,549,879.06, 21,458,686.41 and 8,580,620.70 is: 11,841,175.62
Step by Step Solution
- Step 1: Write the proportion equation
15,549,879.06 : 21,458,686.41 = 8,580,620.70 : x - Step 2: Convert to fraction form
15,549,879.06/21,458,686.41 = 8,580,620.70/x - Step 3: Cross multiply
15,549,879.06x = 21,458,686.41 × 8,580,620.70 - Step 4: Simplify right side
15,549,879.06x = 184,128,848,804,454.69 - Step 5: Solve for x
x = 184,128,848,804,454.69/15,549,879.06 - Step 6: Final answer
x = 11,841,175.62
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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.