Finding the Fourth Proportional to 76,712,440.45, 115,067,873.35 and 44,343,746.95
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Solution
The fourth proportional to 76,712,440.45, 115,067,873.35 and 44,343,746.95 is: 66,515,165.31
Step by Step Solution
- Step 1: Write the proportion equation
76,712,440.45 : 115,067,873.35 = 44,343,746.95 : x - Step 2: Convert to fraction form
76,712,440.45/115,067,873.35 = 44,343,746.95/x - Step 3: Cross multiply
76,712,440.45x = 115,067,873.35 × 44,343,746.95 - Step 4: Simplify right side
76,712,440.45x = 5,102,540,657,907,049 - Step 5: Solve for x
x = 5,102,540,657,907,049/76,712,440.45 - Step 6: Final answer
x = 66,515,165.31
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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.