Finding the Fourth Proportional to 135,432,729.42, 186,908,693.02 and 76,705,841.84
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Solution
The fourth proportional to 135,432,729.42, 186,908,693.02 and 76,705,841.84 is: 105,860,590.03
Step by Step Solution
- Step 1: Write the proportion equation
135,432,729.42 : 186,908,693.02 = 76,705,841.84 : x - Step 2: Convert to fraction form
135,432,729.42/186,908,693.02 = 76,705,841.84/x - Step 3: Cross multiply
135,432,729.42x = 186,908,693.02 × 76,705,841.84 - Step 4: Simplify right side
135,432,729.42x = 14,336,988,645,313,234 - Step 5: Solve for x
x = 14,336,988,645,313,234/135,432,729.42 - Step 6: Final answer
x = 105,860,590.03
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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.