Finding the Fourth Proportional to 5,187,764.48, 7,781,930.55 and 2,155,437
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Solution
The fourth proportional to 5,187,764.48, 7,781,930.55 and 2,155,437 is: 3,233,273.43
Step by Step Solution
- Step 1: Write the proportion equation
5,187,764.48 : 7,781,930.55 = 2,155,437 : x - Step 2: Convert to fraction form
5,187,764.48/7,781,930.55 = 2,155,437/x - Step 3: Cross multiply
5,187,764.48x = 7,781,930.55 × 2,155,437 - Step 4: Simplify right side
5,187,764.48x = 16,773,461,038,900.35 - Step 5: Solve for x
x = 16,773,461,038,900.35/5,187,764.48 - Step 6: Final answer
x = 3,233,273.43
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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.