Finding the Fourth Proportional to 12,070,947.94, 16,657,677.21 and 6,638,439.94
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Solution
The fourth proportional to 12,070,947.94, 16,657,677.21 and 6,638,439.94 is: 9,160,920.11
Step by Step Solution
- Step 1: Write the proportion equation
12,070,947.94 : 16,657,677.21 = 6,638,439.94 : x - Step 2: Convert to fraction form
12,070,947.94/16,657,677.21 = 6,638,439.94/x - Step 3: Cross multiply
12,070,947.94x = 16,657,677.21 × 6,638,439.94 - Step 4: Simplify right side
12,070,947.94x = 110,580,989,698,491.78 - Step 5: Solve for x
x = 110,580,989,698,491.78/12,070,947.94 - Step 6: Final answer
x = 9,160,920.11
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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.