Finding the Fourth Proportional to 1,614,115,444.20, 2,421,173,166.30 and 523,598,512.20
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Solution
The fourth proportional to 1,614,115,444.20, 2,421,173,166.30 and 523,598,512.20 is: 785,397,768.30
Step by Step Solution
- Step 1: Write the proportion equation
1,614,115,444.20 : 2,421,173,166.30 = 523,598,512.20 : x - Step 2: Convert to fraction form
1,614,115,444.20/2,421,173,166.30 = 523,598,512.20/x - Step 3: Cross multiply
1,614,115,444.20x = 2,421,173,166.30 × 523,598,512.20 - Step 4: Simplify right side
1,614,115,444.20x = 1,267,722,667,653,243,136 - Step 5: Solve for x
x = 1,267,722,667,653,243,136/1,614,115,444.20 - Step 6: Final answer
x = 785,397,768.30
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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.