Finding the Fourth Proportional to 15,121,352.20, 22,686,421.74 and 4,885,997.80
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Solution
The fourth proportional to 15,121,352.20, 22,686,421.74 and 4,885,997.80 is: 7,330,416.30
Step by Step Solution
- Step 1: Write the proportion equation
15,121,352.20 : 22,686,421.74 = 4,885,997.80 : x - Step 2: Convert to fraction form
15,121,352.20/22,686,421.74 = 4,885,997.80/x - Step 3: Cross multiply
15,121,352.20x = 22,686,421.74 × 4,885,997.80 - Step 4: Simplify right side
15,121,352.20x = 110,845,806,711,512.16 - Step 5: Solve for x
x = 110,845,806,711,512.16/15,121,352.20 - Step 6: Final answer
x = 7,330,416.30
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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.