Finding the Fourth Proportional to 1,029,302,129.70, 1,420,447,908.33 and 559,403,474.94
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Solution
The fourth proportional to 1,029,302,129.70, 1,420,447,908.33 and 559,403,474.94 is: 771,982,757.02
Step by Step Solution
- Step 1: Write the proportion equation
1,029,302,129.70 : 1,420,447,908.33 = 559,403,474.94 : x - Step 2: Convert to fraction form
1,029,302,129.70/1,420,447,908.33 = 559,403,474.94/x - Step 3: Cross multiply
1,029,302,129.70x = 1,420,447,908.33 × 559,403,474.94 - Step 4: Simplify right side
1,029,302,129.70x = 794,603,495,891,056,640 - Step 5: Solve for x
x = 794,603,495,891,056,640/1,029,302,129.70 - Step 6: Final answer
x = 771,982,757.02
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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.