Finding the Fourth Proportional to 286,909,192.90, 430,418,349.54 and 198,649,964.80
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Solution
The fourth proportional to 286,909,192.90, 430,418,349.54 and 198,649,964.80 is: 298,012,723.54
Step by Step Solution
- Step 1: Write the proportion equation
286,909,192.90 : 430,418,349.54 = 198,649,964.80 : x - Step 2: Convert to fraction form
286,909,192.90/430,418,349.54 = 198,649,964.80/x - Step 3: Cross multiply
286,909,192.90x = 430,418,349.54 × 198,649,964.80 - Step 4: Simplify right side
286,909,192.90x = 85,502,589,985,395,104 - Step 5: Solve for x
x = 85,502,589,985,395,104/286,909,192.90 - Step 6: Final answer
x = 298,012,723.54
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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.