Finding the Fourth Proportional to 81,765,221.33, 122,584,968.59 and 42,331,201.64
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Solution
The fourth proportional to 81,765,221.33, 122,584,968.59 and 42,331,201.64 is: 63,464,257.05
Step by Step Solution
- Step 1: Write the proportion equation
81,765,221.33 : 122,584,968.59 = 42,331,201.64 : x - Step 2: Convert to fraction form
81,765,221.33/122,584,968.59 = 42,331,201.64/x - Step 3: Cross multiply
81,765,221.33x = 122,584,968.59 × 42,331,201.64 - Step 4: Simplify right side
81,765,221.33x = 5,189,169,023,828,647 - Step 5: Solve for x
x = 5,189,169,023,828,647/81,765,221.33 - Step 6: Final answer
x = 63,464,257.05
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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.