Finding the Fourth Proportional to 1,641,024,118.90, 2,461,536,178.36 and 492,166,774.90
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Solution
The fourth proportional to 1,641,024,118.90, 2,461,536,178.36 and 492,166,774.90 is: 738,250,162.35
Step by Step Solution
- Step 1: Write the proportion equation
1,641,024,118.90 : 2,461,536,178.36 = 492,166,774.90 : x - Step 2: Convert to fraction form
1,641,024,118.90/2,461,536,178.36 = 492,166,774.90/x - Step 3: Cross multiply
1,641,024,118.90x = 2,461,536,178.36 × 492,166,774.90 - Step 4: Simplify right side
1,641,024,118.90x = 1,211,486,322,203,112,448 - Step 5: Solve for x
x = 1,211,486,322,203,112,448/1,641,024,118.90 - Step 6: Final answer
x = 738,250,162.35
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Double scale
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Similar ratio
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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.