Finding the Fourth Proportional to 19,289,944.74, 26,642,216.70 and 12,703,973.76
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Solution
The fourth proportional to 19,289,944.74, 26,642,216.70 and 12,703,973.76 is: 17,546,033.77
Step by Step Solution
- Step 1: Write the proportion equation
19,289,944.74 : 26,642,216.70 = 12,703,973.76 : x - Step 2: Convert to fraction form
19,289,944.74/26,642,216.70 = 12,703,973.76/x - Step 3: Cross multiply
19,289,944.74x = 26,642,216.70 × 12,703,973.76 - Step 4: Simplify right side
19,289,944.74x = 338,462,021,865,033.75 - Step 5: Solve for x
x = 338,462,021,865,033.75/19,289,944.74 - Step 6: Final answer
x = 17,546,033.77
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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.