Finding the Fourth Proportional to 76,808,388.42, 115,241,608.91 and 46,124,359.80
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Solution
The fourth proportional to 76,808,388.42, 115,241,608.91 and 46,124,359.80 is: 69,203,970.33
Step by Step Solution
- Step 1: Write the proportion equation
76,808,388.42 : 115,241,608.91 = 46,124,359.80 : x - Step 2: Convert to fraction form
76,808,388.42/115,241,608.91 = 46,124,359.80/x - Step 3: Cross multiply
76,808,388.42x = 115,241,608.91 × 46,124,359.80 - Step 4: Simplify right side
76,808,388.42x = 5,315,445,433,065,104 - Step 5: Solve for x
x = 5,315,445,433,065,104/76,808,388.42 - Step 6: Final answer
x = 69,203,970.33
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.