Finding the Fourth Proportional to 278,026,484.51, 383,651,191.06 and 164,976,497.09
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Solution
The fourth proportional to 278,026,484.51, 383,651,191.06 and 164,976,497.09 is: 227,652,519.20
Step by Step Solution
- Step 1: Write the proportion equation
278,026,484.51 : 383,651,191.06 = 164,976,497.09 : x - Step 2: Convert to fraction form
278,026,484.51/383,651,191.06 = 164,976,497.09/x - Step 3: Cross multiply
278,026,484.51x = 383,651,191.06 × 164,976,497.09 - Step 4: Simplify right side
278,026,484.51x = 63,293,429,604,593,120 - Step 5: Solve for x
x = 63,293,429,604,593,120/278,026,484.51 - Step 6: Final answer
x = 227,652,519.20
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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.