Finding the Fourth Proportional to 13,013,295.71, 19,403,601.10 and 12,655,764.07
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Solution
The fourth proportional to 13,013,295.71, 19,403,601.10 and 12,655,764.07 is: 18,870,500.07
Step by Step Solution
- Step 1: Write the proportion equation
13,013,295.71 : 19,403,601.10 = 12,655,764.07 : x - Step 2: Convert to fraction form
13,013,295.71/19,403,601.10 = 12,655,764.07/x - Step 3: Cross multiply
13,013,295.71x = 19,403,601.10 × 12,655,764.07 - Step 4: Simplify right side
13,013,295.71x = 245,567,397,549,844.09 - Step 5: Solve for x
x = 245,567,397,549,844.09/13,013,295.71 - Step 6: Final answer
x = 18,870,500.07
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.