Finding the Fourth Proportional to 20,756,663.82, 31,135,106.61 and 13,613,432.49
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Solution
The fourth proportional to 20,756,663.82, 31,135,106.61 and 13,613,432.49 is: 20,420,221.46
Step by Step Solution
- Step 1: Write the proportion equation
20,756,663.82 : 31,135,106.61 = 13,613,432.49 : x - Step 2: Convert to fraction form
20,756,663.82/31,135,106.61 = 13,613,432.49/x - Step 3: Cross multiply
20,756,663.82x = 31,135,106.61 × 13,613,432.49 - Step 4: Simplify right side
20,756,663.82x = 423,855,671,904,187.75 - Step 5: Solve for x
x = 423,855,671,904,187.75/20,756,663.82 - Step 6: Final answer
x = 20,420,221.46
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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.