Finding the Fourth Proportional to 73,778,968.80, 110,668,453.20 and 43,167,967.20
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Solution
The fourth proportional to 73,778,968.80, 110,668,453.20 and 43,167,967.20 is: 64,751,950.80
Step by Step Solution
- Step 1: Write the proportion equation
73,778,968.80 : 110,668,453.20 = 43,167,967.20 : x - Step 2: Convert to fraction form
73,778,968.80/110,668,453.20 = 43,167,967.20/x - Step 3: Cross multiply
73,778,968.80x = 110,668,453.20 × 43,167,967.20 - Step 4: Simplify right side
73,778,968.80x = 4,777,332,157,812,335 - Step 5: Solve for x
x = 4,777,332,157,812,335/73,778,968.80 - Step 6: Final answer
x = 64,751,950.80
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1.5x scale
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.