Finding the Fourth Proportional to 315,536,731.40, 473,081,148.30 and 121,373,121.80
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Solution
The fourth proportional to 315,536,731.40, 473,081,148.30 and 121,373,121.80 is: 181,973,539.43
Step by Step Solution
- Step 1: Write the proportion equation
315,536,731.40 : 473,081,148.30 = 121,373,121.80 : x - Step 2: Convert to fraction form
315,536,731.40/473,081,148.30 = 121,373,121.80/x - Step 3: Cross multiply
315,536,731.40x = 473,081,148.30 × 121,373,121.80 - Step 4: Simplify right side
315,536,731.40x = 57,419,335,833,899,760 - Step 5: Solve for x
x = 57,419,335,833,899,760/315,536,731.40 - Step 6: Final answer
x = 181,973,539.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.