Finding the Fourth Proportional to 328,049,207.70, 492,079,643.55 and 98,021,130.90
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Solution
The fourth proportional to 328,049,207.70, 492,079,643.55 and 98,021,130.90 is: 147,033,438.95
Step by Step Solution
- Step 1: Write the proportion equation
328,049,207.70 : 492,079,643.55 = 98,021,130.90 : x - Step 2: Convert to fraction form
328,049,207.70/492,079,643.55 = 98,021,130.90/x - Step 3: Cross multiply
328,049,207.70x = 492,079,643.55 × 98,021,130.90 - Step 4: Simplify right side
328,049,207.70x = 48,234,203,153,639,896 - Step 5: Solve for x
x = 48,234,203,153,639,896/328,049,207.70 - Step 6: Final answer
x = 147,033,438.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.