Finding the Fourth Proportional to 163,718,053.44, 225,931,635.36 and 90,379,798.08
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Solution
The fourth proportional to 163,718,053.44, 225,931,635.36 and 90,379,798.08 is: 124,724,519.71
Step by Step Solution
- Step 1: Write the proportion equation
163,718,053.44 : 225,931,635.36 = 90,379,798.08 : x - Step 2: Convert to fraction form
163,718,053.44/225,931,635.36 = 90,379,798.08/x - Step 3: Cross multiply
163,718,053.44x = 225,931,635.36 × 90,379,798.08 - Step 4: Simplify right side
163,718,053.44x = 20,419,655,583,720,988 - Step 5: Solve for x
x = 20,419,655,583,720,988/163,718,053.44 - Step 6: Final answer
x = 124,724,519.71
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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.