Finding the Fourth Proportional to 8,915,331.55, 12,303,510.30 and 4,995,121.49
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Solution
The fourth proportional to 8,915,331.55, 12,303,510.30 and 4,995,121.49 is: 6,893,465.30
Step by Step Solution
- Step 1: Write the proportion equation
8,915,331.55 : 12,303,510.30 = 4,995,121.49 : x - Step 2: Convert to fraction form
8,915,331.55/12,303,510.30 = 4,995,121.49/x - Step 3: Cross multiply
8,915,331.55x = 12,303,510.30 × 4,995,121.49 - Step 4: Simplify right side
8,915,331.55x = 61,457,528,640,448.80 - Step 5: Solve for x
x = 61,457,528,640,448.80/8,915,331.55 - Step 6: Final answer
x = 6,893,465.30
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1.5x scale
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.