Finding the Fourth Proportional to 20,417,727.06, 28,176,129.75 and 11,125,407.37
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Solution
The fourth proportional to 20,417,727.06, 28,176,129.75 and 11,125,407.37 is: 15,352,880.40
Step by Step Solution
- Step 1: Write the proportion equation
20,417,727.06 : 28,176,129.75 = 11,125,407.37 : x - Step 2: Convert to fraction form
20,417,727.06/28,176,129.75 = 11,125,407.37/x - Step 3: Cross multiply
20,417,727.06x = 28,176,129.75 × 11,125,407.37 - Step 4: Simplify right side
20,417,727.06x = 313,470,921,508,285.94 - Step 5: Solve for x
x = 313,470,921,508,285.94/20,417,727.06 - Step 6: Final answer
x = 15,352,880.40
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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.