Finding the Fourth Proportional to 747,340,256.80, 1,121,010,385.20 and 436,128,407.20
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Solution
The fourth proportional to 747,340,256.80, 1,121,010,385.20 and 436,128,407.20 is: 654,192,610.80
Step by Step Solution
- Step 1: Write the proportion equation
747,340,256.80 : 1,121,010,385.20 = 436,128,407.20 : x - Step 2: Convert to fraction form
747,340,256.80/1,121,010,385.20 = 436,128,407.20/x - Step 3: Cross multiply
747,340,256.80x = 1,121,010,385.20 × 436,128,407.20 - Step 4: Simplify right side
747,340,256.80x = 488,904,473,751,934,464 - Step 5: Solve for x
x = 488,904,473,751,934,464/747,340,256.80 - Step 6: Final answer
x = 654,192,610.80
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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.