Finding the Fourth Proportional to 850,880,221.70, 1,174,214,708.19 and 459,739,645.70
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Solution
The fourth proportional to 850,880,221.70, 1,174,214,708.19 and 459,739,645.70 is: 634,440,712.28
Step by Step Solution
- Step 1: Write the proportion equation
850,880,221.70 : 1,174,214,708.19 = 459,739,645.70 : x - Step 2: Convert to fraction form
850,880,221.70/1,174,214,708.19 = 459,739,645.70/x - Step 3: Cross multiply
850,880,221.70x = 1,174,214,708.19 × 459,739,645.70 - Step 4: Simplify right side
850,880,221.70x = 539,833,053,913,128,448 - Step 5: Solve for x
x = 539,833,053,913,128,448/850,880,221.70 - Step 6: Final answer
x = 634,440,712.28
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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.