Finding the Fourth Proportional to 19,953,923.67, 27,541,430.76 and 11,257,140.93
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Solution
The fourth proportional to 19,953,923.67, 27,541,430.76 and 11,257,140.93 is: 15,537,684.35
Step by Step Solution
- Step 1: Write the proportion equation
19,953,923.67 : 27,541,430.76 = 11,257,140.93 : x - Step 2: Convert to fraction form
19,953,923.67/27,541,430.76 = 11,257,140.93/x - Step 3: Cross multiply
19,953,923.67x = 27,541,430.76 × 11,257,140.93 - Step 4: Simplify right side
19,953,923.67x = 310,037,767,479,157 - Step 5: Solve for x
x = 310,037,767,479,157/19,953,923.67 - Step 6: Final answer
x = 15,537,684.35
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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.