Finding the Fourth Proportional to 1,370,184,451.17, 1,890,856,367.21 and 743,652,879.09
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Solution
The fourth proportional to 1,370,184,451.17, 1,890,856,367.21 and 743,652,879.09 is: 1,026,241,963.42
Step by Step Solution
- Step 1: Write the proportion equation
1,370,184,451.17 : 1,890,856,367.21 = 743,652,879.09 : x - Step 2: Convert to fraction form
1,370,184,451.17/1,890,856,367.21 = 743,652,879.09/x - Step 3: Cross multiply
1,370,184,451.17x = 1,890,856,367.21 × 743,652,879.09 - Step 4: Simplify right side
1,370,184,451.17x = 1,406,140,781,421,374,976 - Step 5: Solve for x
x = 1,406,140,781,421,374,976/1,370,184,451.17 - Step 6: Final answer
x = 1,026,241,963.42
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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.