Finding the Fourth Proportional to 99,109,668.05, 136,775,220.30 and 67,813,356.36
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Solution
The fourth proportional to 99,109,668.05, 136,775,220.30 and 67,813,356.36 is: 93,585,085.48
Step by Step Solution
- Step 1: Write the proportion equation
99,109,668.05 : 136,775,220.30 = 67,813,356.36 : x - Step 2: Convert to fraction form
99,109,668.05/136,775,220.30 = 67,813,356.36/x - Step 3: Cross multiply
99,109,668.05x = 136,775,220.30 × 67,813,356.36 - Step 4: Simplify right side
99,109,668.05x = 9,275,186,755,421,406 - Step 5: Solve for x
x = 9,275,186,755,421,406/99,109,668.05 - Step 6: Final answer
x = 93,585,085.48
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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.