Finding the Fourth Proportional to 157,067,138.44, 216,750,006.39 and 86,509,319.19
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Solution
The fourth proportional to 157,067,138.44, 216,750,006.39 and 86,509,319.19 is: 119,381,403.85
Step by Step Solution
- Step 1: Write the proportion equation
157,067,138.44 : 216,750,006.39 = 86,509,319.19 : x - Step 2: Convert to fraction form
157,067,138.44/216,750,006.39 = 86,509,319.19/x - Step 3: Cross multiply
157,067,138.44x = 216,750,006.39 × 86,509,319.19 - Step 4: Simplify right side
157,067,138.44x = 18,750,895,486,070,796 - Step 5: Solve for x
x = 18,750,895,486,070,796/157,067,138.44 - Step 6: Final answer
x = 119,381,403.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.