Finding the Fourth Proportional to 354,827,643.80, 532,241,465.70 and 328,285,563.80
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Solution
The fourth proportional to 354,827,643.80, 532,241,465.70 and 328,285,563.80 is: 492,428,345.70
Step by Step Solution
- Step 1: Write the proportion equation
354,827,643.80 : 532,241,465.70 = 328,285,563.80 : x - Step 2: Convert to fraction form
354,827,643.80/532,241,465.70 = 328,285,563.80/x - Step 3: Cross multiply
354,827,643.80x = 532,241,465.70 × 328,285,563.80 - Step 4: Simplify right side
354,827,643.80x = 174,727,189,645,062,880 - Step 5: Solve for x
x = 174,727,189,645,062,880/354,827,643.80 - Step 6: Final answer
x = 492,428,345.70
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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.