Finding the Fourth Proportional to 11,917,987.65, 16,445,686.16 and 6,689,798.30
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Solution
The fourth proportional to 11,917,987.65, 16,445,686.16 and 6,689,798.30 is: 9,231,283.55
Step by Step Solution
- Step 1: Write the proportion equation
11,917,987.65 : 16,445,686.16 = 6,689,798.30 : x - Step 2: Convert to fraction form
11,917,987.65/16,445,686.16 = 6,689,798.30/x - Step 3: Cross multiply
11,917,987.65x = 16,445,686.16 × 6,689,798.30 - Step 4: Simplify right side
11,917,987.65x = 110,018,323,373,340.23 - Step 5: Solve for x
x = 110,018,323,373,340.23/11,917,987.65 - Step 6: Final answer
x = 9,231,283.55
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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.