Finding the Fourth Proportional to 23,135,628.74, 31,908,551.39 and 20,338,772.07
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Solution
The fourth proportional to 23,135,628.74, 31,908,551.39 and 20,338,772.07 is: 28,051,139.70
Step by Step Solution
- Step 1: Write the proportion equation
23,135,628.74 : 31,908,551.39 = 20,338,772.07 : x - Step 2: Convert to fraction form
23,135,628.74/31,908,551.39 = 20,338,772.07/x - Step 3: Cross multiply
23,135,628.74x = 31,908,551.39 × 20,338,772.07 - Step 4: Simplify right side
23,135,628.74x = 648,980,753,703,397.88 - Step 5: Solve for x
x = 648,980,753,703,397.88/23,135,628.74 - Step 6: Final answer
x = 28,051,139.70
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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.