Finding the Fourth Proportional to 38,896,405.64, 53,677,022.06 and 21,492,598.63
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Solution
The fourth proportional to 38,896,405.64, 53,677,022.06 and 21,492,598.63 is: 29,659,776.32
Step by Step Solution
- Step 1: Write the proportion equation
38,896,405.64 : 53,677,022.06 = 21,492,598.63 : x - Step 2: Convert to fraction form
38,896,405.64/53,677,022.06 = 21,492,598.63/x - Step 3: Cross multiply
38,896,405.64x = 53,677,022.06 × 21,492,598.63 - Step 4: Simplify right side
38,896,405.64x = 1,153,658,690,789,235.75 - Step 5: Solve for x
x = 1,153,658,690,789,235.75/38,896,405.64 - Step 6: Final answer
x = 29,659,776.32
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1.5x scale
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.