Finding the Fourth Proportional to 325,079,622.96, 487,620,380.28 and 138,285,439.68
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Solution
The fourth proportional to 325,079,622.96, 487,620,380.28 and 138,285,439.68 is: 207,428,561.87
Step by Step Solution
- Step 1: Write the proportion equation
325,079,622.96 : 487,620,380.28 = 138,285,439.68 : x - Step 2: Convert to fraction form
325,079,622.96/487,620,380.28 = 138,285,439.68/x - Step 3: Cross multiply
325,079,622.96x = 487,620,380.28 × 138,285,439.68 - Step 4: Simplify right side
325,079,622.96x = 67,430,798,683,948,600 - Step 5: Solve for x
x = 67,430,798,683,948,600/325,079,622.96 - Step 6: Final answer
x = 207,428,561.87
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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.