Finding the Fourth Proportional to 736,770,819.21, 1,017,202,671.81 and 468,997,794.42
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Solution
The fourth proportional to 736,770,819.21, 1,017,202,671.81 and 468,997,794.42 is: 647,509,099.32
Step by Step Solution
- Step 1: Write the proportion equation
736,770,819.21 : 1,017,202,671.81 = 468,997,794.42 : x - Step 2: Convert to fraction form
736,770,819.21/1,017,202,671.81 = 468,997,794.42/x - Step 3: Cross multiply
736,770,819.21x = 1,017,202,671.81 × 468,997,794.42 - Step 4: Simplify right side
736,770,819.21x = 477,065,809,551,935,104 - Step 5: Solve for x
x = 477,065,809,551,935,104/736,770,819.21 - Step 6: Final answer
x = 647,509,099.32
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.