Finding the Fourth Proportional to 10,778,440.80, 16,167,661.20 and 6,516,415.20
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Solution
The fourth proportional to 10,778,440.80, 16,167,661.20 and 6,516,415.20 is: 9,774,622.80
Step by Step Solution
- Step 1: Write the proportion equation
10,778,440.80 : 16,167,661.20 = 6,516,415.20 : x - Step 2: Convert to fraction form
10,778,440.80/16,167,661.20 = 6,516,415.20/x - Step 3: Cross multiply
10,778,440.80x = 16,167,661.20 × 6,516,415.20 - Step 4: Simplify right side
10,778,440.80x = 105,355,193,192,130.23 - Step 5: Solve for x
x = 105,355,193,192,130.23/10,778,440.80 - Step 6: Final answer
x = 9,774,622.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.