Finding the Fourth Proportional to 1,554,957,138.70, 2,332,435,708.05 and 973,826,405.20
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Solution
The fourth proportional to 1,554,957,138.70, 2,332,435,708.05 and 973,826,405.20 is: 1,460,739,607.80
Step by Step Solution
- Step 1: Write the proportion equation
1,554,957,138.70 : 2,332,435,708.05 = 973,826,405.20 : x - Step 2: Convert to fraction form
1,554,957,138.70/2,332,435,708.05 = 973,826,405.20/x - Step 3: Cross multiply
1,554,957,138.70x = 2,332,435,708.05 × 973,826,405.20 - Step 4: Simplify right side
1,554,957,138.70x = 2,271,387,480,930,448,384 - Step 5: Solve for x
x = 2,271,387,480,930,448,384/1,554,957,138.70 - Step 6: Final answer
x = 1,460,739,607.80
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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.