Finding the Fourth Proportional to 54,434,421.36, 81,638,733.15 and 15,571,675.17
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Solution
The fourth proportional to 54,434,421.36, 81,638,733.15 and 15,571,675.17 is: 23,353,822.86
Step by Step Solution
- Step 1: Write the proportion equation
54,434,421.36 : 81,638,733.15 = 15,571,675.17 : x - Step 2: Convert to fraction form
54,434,421.36/81,638,733.15 = 15,571,675.17/x - Step 3: Cross multiply
54,434,421.36x = 81,638,733.15 × 15,571,675.17 - Step 4: Simplify right side
54,434,421.36x = 1,271,251,833,902,111 - Step 5: Solve for x
x = 1,271,251,833,902,111/54,434,421.36 - Step 6: Final answer
x = 23,353,822.86
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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.