Finding the Fourth Proportional to 521,926,956.58, 783,195,718.20 and 194,628,584.74
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Solution
The fourth proportional to 521,926,956.58, 783,195,718.20 and 194,628,584.74 is: 292,056,718.45
Step by Step Solution
- Step 1: Write the proportion equation
521,926,956.58 : 783,195,718.20 = 194,628,584.74 : x - Step 2: Convert to fraction form
521,926,956.58/783,195,718.20 = 194,628,584.74/x - Step 3: Cross multiply
521,926,956.58x = 783,195,718.20 × 194,628,584.74 - Step 4: Simplify right side
521,926,956.58x = 152,432,274,207,693,888 - Step 5: Solve for x
x = 152,432,274,207,693,888/521,926,956.58 - Step 6: Final answer
x = 292,056,718.45
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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.