Finding the Fourth Proportional to 13,013,777.78, 17,948,541.66 and 11,440,545.80
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Solution
The fourth proportional to 13,013,777.78, 17,948,541.66 and 11,440,545.80 is: 15,778,747.45
Step by Step Solution
- Step 1: Write the proportion equation
13,013,777.78 : 17,948,541.66 = 11,440,545.80 : x - Step 2: Convert to fraction form
13,013,777.78/17,948,541.66 = 11,440,545.80/x - Step 3: Cross multiply
13,013,777.78x = 17,948,541.66 × 11,440,545.80 - Step 4: Simplify right side
13,013,777.78x = 205,341,112,904,438.03 - Step 5: Solve for x
x = 205,341,112,904,438.03/13,013,777.78 - Step 6: Final answer
x = 15,778,747.45
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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.