Finding the Fourth Proportional to 6,653,871.80, 9,980,807.70 and 6,467,247.80
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Solution
The fourth proportional to 6,653,871.80, 9,980,807.70 and 6,467,247.80 is: 9,700,871.70
Step by Step Solution
- Step 1: Write the proportion equation
6,653,871.80 : 9,980,807.70 = 6,467,247.80 : x - Step 2: Convert to fraction form
6,653,871.80/9,980,807.70 = 6,467,247.80/x - Step 3: Cross multiply
6,653,871.80x = 9,980,807.70 × 6,467,247.80 - Step 4: Simplify right side
6,653,871.80x = 64,548,356,640,048.05 - Step 5: Solve for x
x = 64,548,356,640,048.05/6,653,871.80 - Step 6: Final answer
x = 9,700,871.70
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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.