Finding the Fourth Proportional to 1,554,957,421.20, 2,332,436,131.80 and 973,826,687.70
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Solution
The fourth proportional to 1,554,957,421.20, 2,332,436,131.80 and 973,826,687.70 is: 1,460,740,031.55
Step by Step Solution
- Step 1: Write the proportion equation
1,554,957,421.20 : 2,332,436,131.80 = 973,826,687.70 : x - Step 2: Convert to fraction form
1,554,957,421.20/2,332,436,131.80 = 973,826,687.70/x - Step 3: Cross multiply
1,554,957,421.20x = 2,332,436,131.80 × 973,826,687.70 - Step 4: Simplify right side
1,554,957,421.20x = 2,271,388,552,502,594,816 - Step 5: Solve for x
x = 2,271,388,552,502,594,816/1,554,957,421.20 - Step 6: Final answer
x = 1,460,740,031.55
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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.