Finding the Fourth Proportional to 135,448,244.93, 186,915,398.69 and 79,697,276.39
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Solution
The fourth proportional to 135,448,244.93, 186,915,398.69 and 79,697,276.39 is: 109,980,370.72
Step by Step Solution
- Step 1: Write the proportion equation
135,448,244.93 : 186,915,398.69 = 79,697,276.39 : x - Step 2: Convert to fraction form
135,448,244.93/186,915,398.69 = 79,697,276.39/x - Step 3: Cross multiply
135,448,244.93x = 186,915,398.69 × 79,697,276.39 - Step 4: Simplify right side
135,448,244.93x = 14,896,648,191,610,504 - Step 5: Solve for x
x = 14,896,648,191,610,504/135,448,244.93 - Step 6: Final answer
x = 109,980,370.72
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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.