Finding the Fourth Proportional to 293,381,659.80, 440,072,489.70 and 147,758,952.60
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Solution
The fourth proportional to 293,381,659.80, 440,072,489.70 and 147,758,952.60 is: 221,638,428.90
Step by Step Solution
- Step 1: Write the proportion equation
293,381,659.80 : 440,072,489.70 = 147,758,952.60 : x - Step 2: Convert to fraction form
293,381,659.80/440,072,489.70 = 147,758,952.60/x - Step 3: Cross multiply
293,381,659.80x = 440,072,489.70 × 147,758,952.60 - Step 4: Simplify right side
293,381,659.80x = 65,024,650,146,146,280 - Step 5: Solve for x
x = 65,024,650,146,146,280/293,381,659.80 - Step 6: Final answer
x = 221,638,428.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.