Finding the Fourth Proportional to 1,391,041,661.80, 2,086,562,492.70 and 746,069,117.80
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Solution
The fourth proportional to 1,391,041,661.80, 2,086,562,492.70 and 746,069,117.80 is: 1,119,103,676.70
Step by Step Solution
- Step 1: Write the proportion equation
1,391,041,661.80 : 2,086,562,492.70 = 746,069,117.80 : x - Step 2: Convert to fraction form
1,391,041,661.80/2,086,562,492.70 = 746,069,117.80/x - Step 3: Cross multiply
1,391,041,661.80x = 2,086,562,492.70 × 746,069,117.80 - Step 4: Simplify right side
1,391,041,661.80x = 1,556,719,838,163,257,856 - Step 5: Solve for x
x = 1,556,719,838,163,257,856/1,391,041,661.80 - Step 6: Final answer
x = 1,119,103,676.70
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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.