Finding the Fourth Proportional to 19,307,291.10, 26,622,227.56 and 12,328,792.80
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Solution
The fourth proportional to 19,307,291.10, 26,622,227.56 and 12,328,792.80 is: 16,999,791.72
Step by Step Solution
- Step 1: Write the proportion equation
19,307,291.10 : 26,622,227.56 = 12,328,792.80 : x - Step 2: Convert to fraction form
19,307,291.10/26,622,227.56 = 12,328,792.80/x - Step 3: Cross multiply
19,307,291.10x = 26,622,227.56 × 12,328,792.80 - Step 4: Simplify right side
19,307,291.10x = 328,219,927,461,689.56 - Step 5: Solve for x
x = 328,219,927,461,689.56/19,307,291.10 - Step 6: Final answer
x = 16,999,791.72
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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.