Finding the Fourth Proportional to 38,754,378.68, 53,480,415.56 and 21,113,492
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Solution
The fourth proportional to 38,754,378.68, 53,480,415.56 and 21,113,492 is: 29,136,277.36
Step by Step Solution
- Step 1: Write the proportion equation
38,754,378.68 : 53,480,415.56 = 21,113,492 : x - Step 2: Convert to fraction form
38,754,378.68/53,480,415.56 = 21,113,492/x - Step 3: Cross multiply
38,754,378.68x = 53,480,415.56 × 21,113,492 - Step 4: Simplify right side
38,754,378.68x = 1,129,158,326,082,735.50 - Step 5: Solve for x
x = 1,129,158,326,082,735.50/38,754,378.68 - Step 6: Final answer
x = 29,136,277.36
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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.