Finding the Fourth Proportional to 276,218,801.58, 381,125,043.77 and 158,721,431.41
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Solution
The fourth proportional to 276,218,801.58, 381,125,043.77 and 158,721,431.41 is: 219,002,877.95
Step by Step Solution
- Step 1: Write the proportion equation
276,218,801.58 : 381,125,043.77 = 158,721,431.41 : x - Step 2: Convert to fraction form
276,218,801.58/381,125,043.77 = 158,721,431.41/x - Step 3: Cross multiply
276,218,801.58x = 381,125,043.77 × 158,721,431.41 - Step 4: Simplify right side
276,218,801.58x = 60,492,712,490,674,072 - Step 5: Solve for x
x = 60,492,712,490,674,072/276,218,801.58 - Step 6: Final answer
x = 219,002,877.95
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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.