Finding the Fourth Proportional to 9,078,538.49, 12,528,006.14 and 4,948,478.75
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Solution
The fourth proportional to 9,078,538.49, 12,528,006.14 and 4,948,478.75 is: 6,828,695.18
Step by Step Solution
- Step 1: Write the proportion equation
9,078,538.49 : 12,528,006.14 = 4,948,478.75 : x - Step 2: Convert to fraction form
9,078,538.49/12,528,006.14 = 4,948,478.75/x - Step 3: Cross multiply
9,078,538.49x = 12,528,006.14 × 4,948,478.75 - Step 4: Simplify right side
9,078,538.49x = 61,994,572,076,277.10 - Step 5: Solve for x
x = 61,994,572,076,277.10/9,078,538.49 - Step 6: Final answer
x = 6,828,695.18
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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.