Finding the Fourth Proportional to 10,980,455.70, 16,470,683.55 and 8,146,103.70
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Solution
The fourth proportional to 10,980,455.70, 16,470,683.55 and 8,146,103.70 is: 12,219,155.55
Step by Step Solution
- Step 1: Write the proportion equation
10,980,455.70 : 16,470,683.55 = 8,146,103.70 : x - Step 2: Convert to fraction form
10,980,455.70/16,470,683.55 = 8,146,103.70/x - Step 3: Cross multiply
10,980,455.70x = 16,470,683.55 × 8,146,103.70 - Step 4: Simplify right side
10,980,455.70x = 134,171,896,208,184.14 - Step 5: Solve for x
x = 134,171,896,208,184.14/10,980,455.70 - Step 6: Final answer
x = 12,219,155.55
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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.