Finding the Fourth Proportional to 83,791,530.91, 115,630,499.35 and 48,510,823.63
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Solution
The fourth proportional to 83,791,530.91, 115,630,499.35 and 48,510,823.63 is: 66,943,886.80
Step by Step Solution
- Step 1: Write the proportion equation
83,791,530.91 : 115,630,499.35 = 48,510,823.63 : x - Step 2: Convert to fraction form
83,791,530.91/115,630,499.35 = 48,510,823.63/x - Step 3: Cross multiply
83,791,530.91x = 115,630,499.35 × 48,510,823.63 - Step 4: Simplify right side
83,791,530.91x = 5,609,330,760,216,680 - Step 5: Solve for x
x = 5,609,330,760,216,680/83,791,530.91 - Step 6: Final answer
x = 66,943,886.80
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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.