Finding the Fourth Proportional to 2,106,361,531.91, 2,905,378,951.43 and 1,354,625,657.19
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Solution
The fourth proportional to 2,106,361,531.91, 2,905,378,951.43 and 1,354,625,657.19 is: 1,868,483,074.65
Step by Step Solution
- Step 1: Write the proportion equation
2,106,361,531.91 : 2,905,378,951.43 = 1,354,625,657.19 : x - Step 2: Convert to fraction form
2,106,361,531.91/2,905,378,951.43 = 1,354,625,657.19/x - Step 3: Cross multiply
2,106,361,531.91x = 2,905,378,951.43 × 1,354,625,657.19 - Step 4: Simplify right side
2,106,361,531.91x = 3,935,700,871,460,084,224 - Step 5: Solve for x
x = 3,935,700,871,460,084,224/2,106,361,531.91 - Step 6: Final answer
x = 1,868,483,074.65
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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.