Finding the Fourth Proportional to 128,184,051.95, 176,893,296.90 and 71,668,786.80
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Solution
The fourth proportional to 128,184,051.95, 176,893,296.90 and 71,668,786.80 is: 98,902,537.32
Step by Step Solution
- Step 1: Write the proportion equation
128,184,051.95 : 176,893,296.90 = 71,668,786.80 : x - Step 2: Convert to fraction form
128,184,051.95/176,893,296.90 = 71,668,786.80/x - Step 3: Cross multiply
128,184,051.95x = 176,893,296.90 × 71,668,786.80 - Step 4: Simplify right side
128,184,051.95x = 12,677,727,981,875,200 - Step 5: Solve for x
x = 12,677,727,981,875,200/128,184,051.95 - Step 6: Final answer
x = 98,902,537.32
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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.