Finding the Fourth Proportional to 862,236,909.80, 1,293,355,364.70 and 425,746,701.80
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Solution
The fourth proportional to 862,236,909.80, 1,293,355,364.70 and 425,746,701.80 is: 638,620,052.70
Step by Step Solution
- Step 1: Write the proportion equation
862,236,909.80 : 1,293,355,364.70 = 425,746,701.80 : x - Step 2: Convert to fraction form
862,236,909.80/1,293,355,364.70 = 425,746,701.80/x - Step 3: Cross multiply
862,236,909.80x = 1,293,355,364.70 × 425,746,701.80 - Step 4: Simplify right side
862,236,909.80x = 550,641,780,776,361,152 - Step 5: Solve for x
x = 550,641,780,776,361,152/862,236,909.80 - Step 6: Final answer
x = 638,620,052.70
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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.