Finding the Fourth Proportional to 150,461,933.84, 207,660,164.49 and 91,758,651.83
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Solution
The fourth proportional to 150,461,933.84, 207,660,164.49 and 91,758,651.83 is: 126,640,780.47
Step by Step Solution
- Step 1: Write the proportion equation
150,461,933.84 : 207,660,164.49 = 91,758,651.83 : x - Step 2: Convert to fraction form
150,461,933.84/207,660,164.49 = 91,758,651.83/x - Step 3: Cross multiply
150,461,933.84x = 207,660,164.49 × 91,758,651.83 - Step 4: Simplify right side
150,461,933.84x = 19,054,616,731,360,140 - Step 5: Solve for x
x = 19,054,616,731,360,140/150,461,933.84 - Step 6: Final answer
x = 126,640,780.47
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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.