Finding the Fourth Proportional to 135,459,963.20, 186,938,227.68 and 73,583,842.88
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Solution
The fourth proportional to 135,459,963.20, 186,938,227.68 and 73,583,842.88 is: 101,547,592.73
Step by Step Solution
- Step 1: Write the proportion equation
135,459,963.20 : 186,938,227.68 = 73,583,842.88 : x - Step 2: Convert to fraction form
135,459,963.20/186,938,227.68 = 73,583,842.88/x - Step 3: Cross multiply
135,459,963.20x = 186,938,227.68 × 73,583,842.88 - Step 4: Simplify right side
135,459,963.20x = 13,755,633,173,870,786 - Step 5: Solve for x
x = 13,755,633,173,870,786/135,459,963.20 - Step 6: Final answer
x = 101,547,592.73
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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.