Finding the Fourth Proportional to 1,299,989,305.59, 1,793,988,682.04 and 705,273,771.44
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Solution
The fourth proportional to 1,299,989,305.59, 1,793,988,682.04 and 705,273,771.44 is: 973,279,671.03
Step by Step Solution
- Step 1: Write the proportion equation
1,299,989,305.59 : 1,793,988,682.04 = 705,273,771.44 : x - Step 2: Convert to fraction form
1,299,989,305.59/1,793,988,682.04 = 705,273,771.44/x - Step 3: Cross multiply
1,299,989,305.59x = 1,793,988,682.04 × 705,273,771.44 - Step 4: Simplify right side
1,299,989,305.59x = 1,265,253,163,690,529,536 - Step 5: Solve for x
x = 1,265,253,163,690,529,536/1,299,989,305.59 - Step 6: Final answer
x = 973,279,671.03
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1.5x scale
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.