Finding the Fourth Proportional to 1,370,184,450.08, 1,890,856,365.62 and 743,652,878.00
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Solution
The fourth proportional to 1,370,184,450.08, 1,890,856,365.62 and 743,652,878.00 is: 1,026,241,961.87
Step by Step Solution
- Step 1: Write the proportion equation
1,370,184,450.08 : 1,890,856,365.62 = 743,652,878.00 : x - Step 2: Convert to fraction form
1,370,184,450.08/1,890,856,365.62 = 743,652,878.00/x - Step 3: Cross multiply
1,370,184,450.08x = 1,890,856,365.62 × 743,652,878.00 - Step 4: Simplify right side
1,370,184,450.08x = 1,406,140,778,164,760,832 - Step 5: Solve for x
x = 1,406,140,778,164,760,832/1,370,184,450.08 - Step 6: Final answer
x = 1,026,241,961.87
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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.