Finding the Fourth Proportional to 15,605,657.98, 21,535,307.94 and 8,729,992.42
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Solution
The fourth proportional to 15,605,657.98, 21,535,307.94 and 8,729,992.42 is: 12,047,109.79
Step by Step Solution
- Step 1: Write the proportion equation
15,605,657.98 : 21,535,307.94 = 8,729,992.42 : x - Step 2: Convert to fraction form
15,605,657.98/21,535,307.94 = 8,729,992.42/x - Step 3: Cross multiply
15,605,657.98x = 21,535,307.94 × 8,729,992.42 - Step 4: Simplify right side
15,605,657.98x = 188,003,075,078,565.81 - Step 5: Solve for x
x = 188,003,075,078,565.81/15,605,657.98 - Step 6: Final answer
x = 12,047,109.79
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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.