Finding the Fourth Proportional to 219,380,349.38, 302,744,925.88 and 121,595,205.38
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Solution
The fourth proportional to 219,380,349.38, 302,744,925.88 and 121,595,205.38 is: 167,801,407.66
Step by Step Solution
- Step 1: Write the proportion equation
219,380,349.38 : 302,744,925.88 = 121,595,205.38 : x - Step 2: Convert to fraction form
219,380,349.38/302,744,925.88 = 121,595,205.38/x - Step 3: Cross multiply
219,380,349.38x = 302,744,925.88 × 121,595,205.38 - Step 4: Simplify right side
219,380,349.38x = 36,812,331,438,313,768 - Step 5: Solve for x
x = 36,812,331,438,313,768/219,380,349.38 - Step 6: Final answer
x = 167,801,407.66
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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.