Finding the Fourth Proportional to 106,243,742.20, 159,365,613.30 and 97,173,815.80
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Solution
The fourth proportional to 106,243,742.20, 159,365,613.30 and 97,173,815.80 is: 145,760,723.70
Step by Step Solution
- Step 1: Write the proportion equation
106,243,742.20 : 159,365,613.30 = 97,173,815.80 : x - Step 2: Convert to fraction form
106,243,742.20/159,365,613.30 = 97,173,815.80/x - Step 3: Cross multiply
106,243,742.20x = 159,365,613.30 × 97,173,815.80 - Step 4: Simplify right side
106,243,742.20x = 15,486,164,751,668,230 - Step 5: Solve for x
x = 15,486,164,751,668,230/106,243,742.20 - Step 6: Final answer
x = 145,760,723.70
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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.