Finding the Fourth Proportional to 165,888,067.80, 248,832,101.70 and 139,014,211.80
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Solution
The fourth proportional to 165,888,067.80, 248,832,101.70 and 139,014,211.80 is: 208,521,317.70
Step by Step Solution
- Step 1: Write the proportion equation
165,888,067.80 : 248,832,101.70 = 139,014,211.80 : x - Step 2: Convert to fraction form
165,888,067.80/248,832,101.70 = 139,014,211.80/x - Step 3: Cross multiply
165,888,067.80x = 248,832,101.70 × 139,014,211.80 - Step 4: Simplify right side
165,888,067.80x = 34,591,198,488,362,940 - Step 5: Solve for x
x = 34,591,198,488,362,940/165,888,067.80 - Step 6: Final answer
x = 208,521,317.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.