Finding the Fourth Proportional to 1,917,372,471.90, 2,873,516,228.01 and 984,657,640.38
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Solution
The fourth proportional to 1,917,372,471.90, 2,873,516,228.01 and 984,657,640.38 is: 1,475,680,781.97
Step by Step Solution
- Step 1: Write the proportion equation
1,917,372,471.90 : 2,873,516,228.01 = 984,657,640.38 : x - Step 2: Convert to fraction form
1,917,372,471.90/2,873,516,228.01 = 984,657,640.38/x - Step 3: Cross multiply
1,917,372,471.90x = 2,873,516,228.01 × 984,657,640.38 - Step 4: Simplify right side
1,917,372,471.90x = 2,829,429,708,665,965,056 - Step 5: Solve for x
x = 2,829,429,708,665,965,056/1,917,372,471.90 - Step 6: Final answer
x = 1,475,680,781.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.