Finding the Fourth Proportional to 103,415,832.84, 142,713,782.37 and 56,372,996.28
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Solution
The fourth proportional to 103,415,832.84, 142,713,782.37 and 56,372,996.28 is: 77,794,698.37
Step by Step Solution
- Step 1: Write the proportion equation
103,415,832.84 : 142,713,782.37 = 56,372,996.28 : x - Step 2: Convert to fraction form
103,415,832.84/142,713,782.37 = 56,372,996.28/x - Step 3: Cross multiply
103,415,832.84x = 142,713,782.37 × 56,372,996.28 - Step 4: Simplify right side
103,415,832.84x = 8,045,203,522,648,740 - Step 5: Solve for x
x = 8,045,203,522,648,740/103,415,832.84 - Step 6: Final answer
x = 77,794,698.37
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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.