Finding the Fourth Proportional to 1,269,689,353.55, 1,752,175,367.23 and 705,174,132.92
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Solution
The fourth proportional to 1,269,689,353.55, 1,752,175,367.23 and 705,174,132.92 is: 973,142,557.95
Step by Step Solution
- Step 1: Write the proportion equation
1,269,689,353.55 : 1,752,175,367.23 = 705,174,132.92 : x - Step 2: Convert to fraction form
1,269,689,353.55/1,752,175,367.23 = 705,174,132.92/x - Step 3: Cross multiply
1,269,689,353.55x = 1,752,175,367.23 × 705,174,132.92 - Step 4: Simplify right side
1,269,689,353.55x = 1,235,588,745,310,197,760 - Step 5: Solve for x
x = 1,235,588,745,310,197,760/1,269,689,353.55 - Step 6: Final answer
x = 973,142,557.95
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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.