Finding the Fourth Proportional to 7,250,711, 10,005,781.35 and 3,987,525.65
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Solution
The fourth proportional to 7,250,711, 10,005,781.35 and 3,987,525.65 is: 5,502,675.50
Step by Step Solution
- Step 1: Write the proportion equation
7,250,711 : 10,005,781.35 = 3,987,525.65 : x - Step 2: Convert to fraction form
7,250,711/10,005,781.35 = 3,987,525.65/x - Step 3: Cross multiply
7,250,711x = 10,005,781.35 × 3,987,525.65 - Step 4: Simplify right side
7,250,711x = 39,898,309,781,416.62 - Step 5: Solve for x
x = 39,898,309,781,416.62/7,250,711 - Step 6: Final answer
x = 5,502,675.50
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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.