Finding the Fourth Proportional to 15,637,779.41, 21,580,141.91 and 9,526,207.91
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Solution
The fourth proportional to 15,637,779.41, 21,580,141.91 and 9,526,207.91 is: 13,146,170.76
Step by Step Solution
- Step 1: Write the proportion equation
15,637,779.41 : 21,580,141.91 = 9,526,207.91 : x - Step 2: Convert to fraction form
15,637,779.41/21,580,141.91 = 9,526,207.91/x - Step 3: Cross multiply
15,637,779.41x = 21,580,141.91 × 9,526,207.91 - Step 4: Simplify right side
15,637,779.41x = 205,576,918,406,432.75 - Step 5: Solve for x
x = 205,576,918,406,432.75/15,637,779.41 - Step 6: Final answer
x = 13,146,170.76
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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.