Finding the Fourth Proportional to 87,825,259.41, 121,199,569.99 and 48,667,690.08
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Solution
The fourth proportional to 87,825,259.41, 121,199,569.99 and 48,667,690.08 is: 67,161,806.86
Step by Step Solution
- Step 1: Write the proportion equation
87,825,259.41 : 121,199,569.99 = 48,667,690.08 : x - Step 2: Convert to fraction form
87,825,259.41/121,199,569.99 = 48,667,690.08/x - Step 3: Cross multiply
87,825,259.41x = 121,199,569.99 × 48,667,690.08 - Step 4: Simplify right side
87,825,259.41x = 5,898,503,109,980,919 - Step 5: Solve for x
x = 5,898,503,109,980,919/87,825,259.41 - Step 6: Final answer
x = 67,161,806.86
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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.