Finding the Fourth Proportional to 39,577,681.35, 54,620,472.47 and 21,942,117.97
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Solution
The fourth proportional to 39,577,681.35, 54,620,472.47 and 21,942,117.97 is: 30,281,936.93
Step by Step Solution
- Step 1: Write the proportion equation
39,577,681.35 : 54,620,472.47 = 21,942,117.97 : x - Step 2: Convert to fraction form
39,577,681.35/54,620,472.47 = 21,942,117.97/x - Step 3: Cross multiply
39,577,681.35x = 54,620,472.47 × 21,942,117.97 - Step 4: Simplify right side
39,577,681.35x = 1,198,488,850,513,877.25 - Step 5: Solve for x
x = 1,198,488,850,513,877.25/39,577,681.35 - Step 6: Final answer
x = 30,281,936.93
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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.