Finding the Fourth Proportional to 245,636,571.06, 338,980,106.85 and 134,128,186.14
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Solution
The fourth proportional to 245,636,571.06, 338,980,106.85 and 134,128,186.14 is: 185,097,791.72
Step by Step Solution
- Step 1: Write the proportion equation
245,636,571.06 : 338,980,106.85 = 134,128,186.14 : x - Step 2: Convert to fraction form
245,636,571.06/338,980,106.85 = 134,128,186.14/x - Step 3: Cross multiply
245,636,571.06x = 338,980,106.85 × 134,128,186.14 - Step 4: Simplify right side
245,636,571.06x = 45,466,786,869,333,896 - Step 5: Solve for x
x = 45,466,786,869,333,896/245,636,571.06 - Step 6: Final answer
x = 185,097,791.72
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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.