Finding the Fourth Proportional to 527,128,331.94, 727,435,842.89 and 288,973,093.41
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Solution
The fourth proportional to 527,128,331.94, 727,435,842.89 and 288,973,093.41 is: 398,782,180.81
Step by Step Solution
- Step 1: Write the proportion equation
527,128,331.94 : 727,435,842.89 = 288,973,093.41 : x - Step 2: Convert to fraction form
527,128,331.94/727,435,842.89 = 288,973,093.41/x - Step 3: Cross multiply
527,128,331.94x = 727,435,842.89 × 288,973,093.41 - Step 4: Simplify right side
527,128,331.94x = 210,209,385,775,789,216 - Step 5: Solve for x
x = 210,209,385,775,789,216/527,128,331.94 - Step 6: Final answer
x = 398,782,180.81
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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.