Finding the Fourth Proportional to 1,370,184,455.10, 1,890,856,372.54 and 743,652,883.02
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Solution
The fourth proportional to 1,370,184,455.10, 1,890,856,372.54 and 743,652,883.02 is: 1,026,241,968.80
Step by Step Solution
- Step 1: Write the proportion equation
1,370,184,455.10 : 1,890,856,372.54 = 743,652,883.02 : x - Step 2: Convert to fraction form
1,370,184,455.10/1,890,856,372.54 = 743,652,883.02/x - Step 3: Cross multiply
1,370,184,455.10x = 1,890,856,372.54 × 743,652,883.02 - Step 4: Simplify right side
1,370,184,455.10x = 1,406,140,792,816,110,080 - Step 5: Solve for x
x = 1,406,140,792,816,110,080/1,370,184,455.10 - Step 6: Final answer
x = 1,026,241,968.80
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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.