Finding the Fourth Proportional to 734,128,709.70, 1,101,193,064.55 and 423,767,165.70
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Solution
The fourth proportional to 734,128,709.70, 1,101,193,064.55 and 423,767,165.70 is: 635,650,748.55
Step by Step Solution
- Step 1: Write the proportion equation
734,128,709.70 : 1,101,193,064.55 = 423,767,165.70 : x - Step 2: Convert to fraction form
734,128,709.70/1,101,193,064.55 = 423,767,165.70/x - Step 3: Cross multiply
734,128,709.70x = 1,101,193,064.55 × 423,767,165.70 - Step 4: Simplify right side
734,128,709.70x = 466,649,463,852,850,624 - Step 5: Solve for x
x = 466,649,463,852,850,624/734,128,709.70 - Step 6: Final answer
x = 635,650,748.55
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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.