Finding the Fourth Proportional to 509,103,475.99, 763,342,685.20 and 197,847,663.73
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Solution
The fourth proportional to 509,103,475.99, 763,342,685.20 and 197,847,663.73 is: 296,650,040.74
Step by Step Solution
- Step 1: Write the proportion equation
509,103,475.99 : 763,342,685.20 = 197,847,663.73 : x - Step 2: Convert to fraction form
509,103,475.99/763,342,685.20 = 197,847,663.73/x - Step 3: Cross multiply
509,103,475.99x = 763,342,685.20 × 197,847,663.73 - Step 4: Simplify right side
509,103,475.99x = 151,025,566,892,204,864 - Step 5: Solve for x
x = 151,025,566,892,204,864/509,103,475.99 - Step 6: Final answer
x = 296,650,040.74
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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.