Finding the Fourth Proportional to 147,687,013.52, 203,803,788.84 and 81,606,461.84
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Solution
The fourth proportional to 147,687,013.52, 203,803,788.84 and 81,606,461.84 is: 112,614,546.94
Step by Step Solution
- Step 1: Write the proportion equation
147,687,013.52 : 203,803,788.84 = 81,606,461.84 : x - Step 2: Convert to fraction form
147,687,013.52/203,803,788.84 = 81,606,461.84/x - Step 3: Cross multiply
147,687,013.52x = 203,803,788.84 × 81,606,461.84 - Step 4: Simplify right side
147,687,013.52x = 16,631,706,116,818,878 - Step 5: Solve for x
x = 16,631,706,116,818,878/147,687,013.52 - Step 6: Final answer
x = 112,614,546.94
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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.