Finding the Fourth Proportional to 147,749,653.18, 203,894,565.31 and 80,768,902.41
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Solution
The fourth proportional to 147,749,653.18, 203,894,565.31 and 80,768,902.41 is: 111,461,109.34
Step by Step Solution
- Step 1: Write the proportion equation
147,749,653.18 : 203,894,565.31 = 80,768,902.41 : x - Step 2: Convert to fraction form
147,749,653.18/203,894,565.31 = 80,768,902.41/x - Step 3: Cross multiply
147,749,653.18x = 203,894,565.31 × 80,768,902.41 - Step 4: Simplify right side
147,749,653.18x = 16,468,340,247,452,760 - Step 5: Solve for x
x = 16,468,340,247,452,760/147,749,653.18 - Step 6: Final answer
x = 111,461,109.34
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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.