Finding the Fourth Proportional to 1,861,887,525.12, 2,569,286,388.48 and 1,026,466,433.28
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Solution
The fourth proportional to 1,861,887,525.12, 2,569,286,388.48 and 1,026,466,433.28 is: 1,416,458,405.61
Step by Step Solution
- Step 1: Write the proportion equation
1,861,887,525.12 : 2,569,286,388.48 = 1,026,466,433.28 : x - Step 2: Convert to fraction form
1,861,887,525.12/2,569,286,388.48 = 1,026,466,433.28/x - Step 3: Cross multiply
1,861,887,525.12x = 2,569,286,388.48 × 1,026,466,433.28 - Step 4: Simplify right side
1,861,887,525.12x = 2,637,286,235,257,917,952 - Step 5: Solve for x
x = 2,637,286,235,257,917,952/1,861,887,525.12 - Step 6: Final answer
x = 1,416,458,405.61
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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.