Finding the Fourth Proportional to 121,886,315.10, 182,791,065.48 and 39,986,108.42
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Solution
The fourth proportional to 121,886,315.10, 182,791,065.48 and 39,986,108.42 is: 59,966,562.75
Step by Step Solution
- Step 1: Write the proportion equation
121,886,315.10 : 182,791,065.48 = 39,986,108.42 : x - Step 2: Convert to fraction form
121,886,315.10/182,791,065.48 = 39,986,108.42/x - Step 3: Cross multiply
121,886,315.10x = 182,791,065.48 × 39,986,108.42 - Step 4: Simplify right side
121,886,315.10x = 7,309,103,362,490,599 - Step 5: Solve for x
x = 7,309,103,362,490,599/121,886,315.10 - Step 6: Final answer
x = 59,966,562.75
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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.