Finding the Fourth Proportional to 147,643,877.18, 203,754,378.36 and 84,919,874.90
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Solution
The fourth proportional to 147,643,877.18, 203,754,378.36 and 84,919,874.90 is: 117,192,779.35
Step by Step Solution
- Step 1: Write the proportion equation
147,643,877.18 : 203,754,378.36 = 84,919,874.90 : x - Step 2: Convert to fraction form
147,643,877.18/203,754,378.36 = 84,919,874.90/x - Step 3: Cross multiply
147,643,877.18x = 203,754,378.36 × 84,919,874.90 - Step 4: Simplify right side
147,643,877.18x = 17,302,796,320,658,470 - Step 5: Solve for x
x = 17,302,796,320,658,470/147,643,877.18 - Step 6: Final answer
x = 117,192,779.35
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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.