Finding the Fourth Proportional to 896,810,107.20, 1,345,215,160.80 and 664,357,813.80
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Solution
The fourth proportional to 896,810,107.20, 1,345,215,160.80 and 664,357,813.80 is: 996,536,720.70
Step by Step Solution
- Step 1: Write the proportion equation
896,810,107.20 : 1,345,215,160.80 = 664,357,813.80 : x - Step 2: Convert to fraction form
896,810,107.20/1,345,215,160.80 = 664,357,813.80/x - Step 3: Cross multiply
896,810,107.20x = 1,345,215,160.80 × 664,357,813.80 - Step 4: Simplify right side
896,810,107.20x = 893,704,203,319,703,424 - Step 5: Solve for x
x = 893,704,203,319,703,424/896,810,107.20 - Step 6: Final answer
x = 996,536,720.70
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1.5x scale
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.