Finding the Fourth Proportional to 112,856,041.73, 155,583,905.04 and 75,692,963.09
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Solution
The fourth proportional to 112,856,041.73, 155,583,905.04 and 75,692,963.09 is: 104,350,698.48
Step by Step Solution
- Step 1: Write the proportion equation
112,856,041.73 : 155,583,905.04 = 75,692,963.09 : x - Step 2: Convert to fraction form
112,856,041.73/155,583,905.04 = 75,692,963.09/x - Step 3: Cross multiply
112,856,041.73x = 155,583,905.04 × 75,692,963.09 - Step 4: Simplify right side
112,856,041.73x = 11,776,606,781,979,744 - Step 5: Solve for x
x = 11,776,606,781,979,744/112,856,041.73 - Step 6: Final answer
x = 104,350,698.48
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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.