Finding the Fourth Proportional to 83,751,294.48, 115,664,899.68 and 74,621,706.72
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Solution
The fourth proportional to 83,751,294.48, 115,664,899.68 and 74,621,706.72 is: 103,056,463.49
Step by Step Solution
- Step 1: Write the proportion equation
83,751,294.48 : 115,664,899.68 = 74,621,706.72 : x - Step 2: Convert to fraction form
83,751,294.48/115,664,899.68 = 74,621,706.72/x - Step 3: Cross multiply
83,751,294.48x = 115,664,899.68 × 74,621,706.72 - Step 4: Simplify right side
83,751,294.48x = 8,631,112,221,719,182 - Step 5: Solve for x
x = 8,631,112,221,719,182/83,751,294.48 - Step 6: Final answer
x = 103,056,463.49
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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.