Finding the Fourth Proportional to 5,101,839.10, 7,040,613.95 and 2,778,838.71
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Solution
The fourth proportional to 5,101,839.10, 7,040,613.95 and 2,778,838.71 is: 3,834,838.81
Step by Step Solution
- Step 1: Write the proportion equation
5,101,839.10 : 7,040,613.95 = 2,778,838.71 : x - Step 2: Convert to fraction form
5,101,839.10/7,040,613.95 = 2,778,838.71/x - Step 3: Cross multiply
5,101,839.10x = 7,040,613.95 × 2,778,838.71 - Step 4: Simplify right side
5,101,839.10x = 19,564,730,586,426.00 - Step 5: Solve for x
x = 19,564,730,586,426.00/5,101,839.10 - Step 6: Final answer
x = 3,834,838.81
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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.