Finding the Fourth Proportional to 86,991,081.06, 119,936,251.74 and 71,252,124.15
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Solution
The fourth proportional to 86,991,081.06, 119,936,251.74 and 71,252,124.15 is: 98,236,653.63
Step by Step Solution
- Step 1: Write the proportion equation
86,991,081.06 : 119,936,251.74 = 71,252,124.15 : x - Step 2: Convert to fraction form
86,991,081.06/119,936,251.74 = 71,252,124.15/x - Step 3: Cross multiply
86,991,081.06x = 119,936,251.74 × 71,252,124.15 - Step 4: Simplify right side
86,991,081.06x = 8,545,712,699,064,134 - Step 5: Solve for x
x = 8,545,712,699,064,134/86,991,081.06 - Step 6: Final answer
x = 98,236,653.63
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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.