Finding the Fourth Proportional to 54,292,346.21, 74,922,909.90 and 40,415,756.69
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Solution
The fourth proportional to 54,292,346.21, 74,922,909.90 and 40,415,756.69 is: 55,773,351.28
Step by Step Solution
- Step 1: Write the proportion equation
54,292,346.21 : 74,922,909.90 = 40,415,756.69 : x - Step 2: Convert to fraction form
54,292,346.21/74,922,909.90 = 40,415,756.69/x - Step 3: Cross multiply
54,292,346.21x = 74,922,909.90 × 40,415,756.69 - Step 4: Simplify right side
54,292,346.21x = 3,028,066,097,060,940.50 - Step 5: Solve for x
x = 3,028,066,097,060,940.50/54,292,346.21 - Step 6: Final answer
x = 55,773,351.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.