Finding the Fourth Proportional to 320,482,007.80, 480,723,011.70 and 115,936,271.80
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Solution
The fourth proportional to 320,482,007.80, 480,723,011.70 and 115,936,271.80 is: 173,904,407.70
Step by Step Solution
- Step 1: Write the proportion equation
320,482,007.80 : 480,723,011.70 = 115,936,271.80 : x - Step 2: Convert to fraction form
320,482,007.80/480,723,011.70 = 115,936,271.80/x - Step 3: Cross multiply
320,482,007.80x = 480,723,011.70 × 115,936,271.80 - Step 4: Simplify right side
320,482,007.80x = 55,733,233,744,965,776 - Step 5: Solve for x
x = 55,733,233,744,965,776/320,482,007.80 - Step 6: Final answer
x = 173,904,407.70
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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.