Finding the Fourth Proportional to 5,155,780.40, 7,721,890.68 and 2,461,992.56
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Solution
The fourth proportional to 5,155,780.40, 7,721,890.68 and 2,461,992.56 is: 3,687,363.68
Step by Step Solution
- Step 1: Write the proportion equation
5,155,780.40 : 7,721,890.68 = 2,461,992.56 : x - Step 2: Convert to fraction form
5,155,780.40/7,721,890.68 = 2,461,992.56/x - Step 3: Cross multiply
5,155,780.40x = 7,721,890.68 × 2,461,992.56 - Step 4: Simplify right side
5,155,780.40x = 19,011,237,403,293.34 - Step 5: Solve for x
x = 19,011,237,403,293.34/5,155,780.40 - Step 6: Final answer
x = 3,687,363.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.