Finding the Fourth Proportional to 21,515,100.62, 29,689,972.74 and 11,725,334.12
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Solution
The fourth proportional to 21,515,100.62, 29,689,972.74 and 11,725,334.12 is: 16,180,489.07
Step by Step Solution
- Step 1: Write the proportion equation
21,515,100.62 : 29,689,972.74 = 11,725,334.12 : x - Step 2: Convert to fraction form
21,515,100.62/29,689,972.74 = 11,725,334.12/x - Step 3: Cross multiply
21,515,100.62x = 29,689,972.74 × 11,725,334.12 - Step 4: Simplify right side
21,515,100.62x = 348,124,850,390,191.88 - Step 5: Solve for x
x = 348,124,850,390,191.88/21,515,100.62 - Step 6: Final answer
x = 16,180,489.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.