Finding the Fourth Proportional to 407,818,706.76, 562,691,642.92 and 238,176,740.09
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Solution
The fourth proportional to 407,818,706.76, 562,691,642.92 and 238,176,740.09 is: 328,626,566.08
Step by Step Solution
- Step 1: Write the proportion equation
407,818,706.76 : 562,691,642.92 = 238,176,740.09 : x - Step 2: Convert to fraction form
407,818,706.76/562,691,642.92 = 238,176,740.09/x - Step 3: Cross multiply
407,818,706.76x = 562,691,642.92 × 238,176,740.09 - Step 4: Simplify right side
407,818,706.76x = 134,020,061,182,567,584 - Step 5: Solve for x
x = 134,020,061,182,567,584/407,818,706.76 - Step 6: Final answer
x = 328,626,566.08
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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.