Finding the Fourth Proportional to 219,023,063.68, 302,251,833.92 and 121,237,919.68
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Solution
The fourth proportional to 219,023,063.68, 302,251,833.92 and 121,237,919.68 is: 167,308,332.50
Step by Step Solution
- Step 1: Write the proportion equation
219,023,063.68 : 302,251,833.92 = 121,237,919.68 : x - Step 2: Convert to fraction form
219,023,063.68/302,251,833.92 = 121,237,919.68/x - Step 3: Cross multiply
219,023,063.68x = 302,251,833.92 × 121,237,919.68 - Step 4: Simplify right side
219,023,063.68x = 36,644,383,563,925,664 - Step 5: Solve for x
x = 36,644,383,563,925,664/219,023,063.68 - Step 6: Final answer
x = 167,308,332.50
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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.