Finding the Fourth Proportional to 1,545,103,679.80, 2,317,655,519.70 and 728,810,303.80
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Solution
The fourth proportional to 1,545,103,679.80, 2,317,655,519.70 and 728,810,303.80 is: 1,093,215,455.70
Step by Step Solution
- Step 1: Write the proportion equation
1,545,103,679.80 : 2,317,655,519.70 = 728,810,303.80 : x - Step 2: Convert to fraction form
1,545,103,679.80/2,317,655,519.70 = 728,810,303.80/x - Step 3: Cross multiply
1,545,103,679.80x = 2,317,655,519.70 × 728,810,303.80 - Step 4: Simplify right side
1,545,103,679.80x = 1,689,131,223,416,303,616 - Step 5: Solve for x
x = 1,689,131,223,416,303,616/1,545,103,679.80 - Step 6: Final answer
x = 1,093,215,455.70
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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.