Finding the Fourth Proportional to 117,743,829.12, 162,490,095.36 and 65,535,765.12
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Solution
The fourth proportional to 117,743,829.12, 162,490,095.36 and 65,535,765.12 is: 90,441,365.83
Step by Step Solution
- Step 1: Write the proportion equation
117,743,829.12 : 162,490,095.36 = 65,535,765.12 : x - Step 2: Convert to fraction form
117,743,829.12/162,490,095.36 = 65,535,765.12/x - Step 3: Cross multiply
117,743,829.12x = 162,490,095.36 × 65,535,765.12 - Step 4: Simplify right side
117,743,829.12x = 10,648,912,723,839,362 - Step 5: Solve for x
x = 10,648,912,723,839,362/117,743,829.12 - Step 6: Final answer
x = 90,441,365.83
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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.