Finding the Fourth Proportional to 21,609,896.61, 29,821,746.58 and 11,686,779.09
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Solution
The fourth proportional to 21,609,896.61, 29,821,746.58 and 11,686,779.09 is: 16,127,803.41
Step by Step Solution
- Step 1: Write the proportion equation
21,609,896.61 : 29,821,746.58 = 11,686,779.09 : x - Step 2: Convert to fraction form
21,609,896.61/29,821,746.58 = 11,686,779.09/x - Step 3: Cross multiply
21,609,896.61x = 29,821,746.58 × 11,686,779.09 - Step 4: Simplify right side
21,609,896.61x = 348,520,164,329,206.06 - Step 5: Solve for x
x = 348,520,164,329,206.06/21,609,896.61 - Step 6: Final answer
x = 16,127,803.41
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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.