Finding the Fourth Proportional to 15,609,695.99, 21,538,810.80 and 9,804,342.76
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Solution
The fourth proportional to 15,609,695.99, 21,538,810.80 and 9,804,342.76 is: 13,528,379.02
Step by Step Solution
- Step 1: Write the proportion equation
15,609,695.99 : 21,538,810.80 = 9,804,342.76 : x - Step 2: Convert to fraction form
15,609,695.99/21,538,810.80 = 9,804,342.76/x - Step 3: Cross multiply
15,609,695.99x = 21,538,810.80 × 9,804,342.76 - Step 4: Simplify right side
15,609,695.99x = 211,173,883,672,142.78 - Step 5: Solve for x
x = 211,173,883,672,142.78/15,609,695.99 - Step 6: Final answer
x = 13,528,379.02
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1.5x scale
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.