Finding the Fourth Proportional to 49,742,920.23, 68,645,502.24 and 28,847,341.92
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Solution
The fourth proportional to 49,742,920.23, 68,645,502.24 and 28,847,341.92 is: 39,809,489.78
Step by Step Solution
- Step 1: Write the proportion equation
49,742,920.23 : 68,645,502.24 = 28,847,341.92 : x - Step 2: Convert to fraction form
49,742,920.23/68,645,502.24 = 28,847,341.92/x - Step 3: Cross multiply
49,742,920.23x = 68,645,502.24 × 28,847,341.92 - Step 4: Simplify right side
49,742,920.23x = 1,980,240,274,387,405.75 - Step 5: Solve for x
x = 1,980,240,274,387,405.75/49,742,920.23 - Step 6: Final answer
x = 39,809,489.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.