Finding the Fourth Proportional to 1,211,125,860.86, 1,671,354,420.39 and 654,209,153.96
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Solution
The fourth proportional to 1,211,125,860.86, 1,671,354,420.39 and 654,209,153.96 is: 902,809,028.08
Step by Step Solution
- Step 1: Write the proportion equation
1,211,125,860.86 : 1,671,354,420.39 = 654,209,153.96 : x - Step 2: Convert to fraction form
1,211,125,860.86/1,671,354,420.39 = 654,209,153.96/x - Step 3: Cross multiply
1,211,125,860.86x = 1,671,354,420.39 × 654,209,153.96 - Step 4: Simplify right side
1,211,125,860.86x = 1,093,415,361,322,291,456 - Step 5: Solve for x
x = 1,093,415,361,322,291,456/1,211,125,860.86 - Step 6: Final answer
x = 902,809,028.08
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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.