Finding the Fourth Proportional to 90,058,161.30, 124,280,368.91 and 48,805,053.68
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Solution
The fourth proportional to 90,058,161.30, 124,280,368.91 and 48,805,053.68 is: 67,351,031.69
Step by Step Solution
- Step 1: Write the proportion equation
90,058,161.30 : 124,280,368.91 = 48,805,053.68 : x - Step 2: Convert to fraction form
90,058,161.30/124,280,368.91 = 48,805,053.68/x - Step 3: Cross multiply
90,058,161.30x = 124,280,368.91 × 48,805,053.68 - Step 4: Simplify right side
90,058,161.30x = 6,065,510,076,022,753 - Step 5: Solve for x
x = 6,065,510,076,022,753/90,058,161.30 - Step 6: Final answer
x = 67,351,031.69
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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.