Finding the Fourth Proportional to 5,187,767.48, 7,781,935.05 and 2,155,440
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Solution
The fourth proportional to 5,187,767.48, 7,781,935.05 and 2,155,440 is: 3,233,277.93
Step by Step Solution
- Step 1: Write the proportion equation
5,187,767.48 : 7,781,935.05 = 2,155,440 : x - Step 2: Convert to fraction form
5,187,767.48/7,781,935.05 = 2,155,440/x - Step 3: Cross multiply
5,187,767.48x = 7,781,935.05 × 2,155,440 - Step 4: Simplify right side
5,187,767.48x = 16,773,494,084,172 - Step 5: Solve for x
x = 16,773,494,084,172/5,187,767.48 - Step 6: Final answer
x = 3,233,277.93
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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.