Finding the Fourth Proportional to 372,649,796.80, 558,974,695.20 and 127,283,487.10
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Solution
The fourth proportional to 372,649,796.80, 558,974,695.20 and 127,283,487.10 is: 190,925,230.65
Step by Step Solution
- Step 1: Write the proportion equation
372,649,796.80 : 558,974,695.20 = 127,283,487.10 : x - Step 2: Convert to fraction form
372,649,796.80/558,974,695.20 = 127,283,487.10/x - Step 3: Cross multiply
372,649,796.80x = 558,974,695.20 × 127,283,487.10 - Step 4: Simplify right side
372,649,796.80x = 71,148,248,405,715,632 - Step 5: Solve for x
x = 71,148,248,405,715,632/372,649,796.80 - Step 6: Final answer
x = 190,925,230.65
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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.