Finding the Fourth Proportional to 10,395,432.12, 15,580,902.64 and 4,243,571.80
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Solution
The fourth proportional to 10,395,432.12, 15,580,902.64 and 4,243,571.80 is: 6,360,358.89
Step by Step Solution
- Step 1: Write the proportion equation
10,395,432.12 : 15,580,902.64 = 4,243,571.80 : x - Step 2: Convert to fraction form
10,395,432.12/15,580,902.64 = 4,243,571.80/x - Step 3: Cross multiply
10,395,432.12x = 15,580,902.64 × 4,243,571.80 - Step 4: Simplify right side
10,395,432.12x = 66,118,679,061,649.55 - Step 5: Solve for x
x = 66,118,679,061,649.55/10,395,432.12 - Step 6: Final answer
x = 6,360,358.89
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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.