Finding the Fourth Proportional to 39,957,726.18, 55,141,662.12 and 21,623,011.68
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Solution
The fourth proportional to 39,957,726.18, 55,141,662.12 and 21,623,011.68 is: 29,839,756.11
Step by Step Solution
- Step 1: Write the proportion equation
39,957,726.18 : 55,141,662.12 = 21,623,011.68 : x - Step 2: Convert to fraction form
39,957,726.18/55,141,662.12 = 21,623,011.68/x - Step 3: Cross multiply
39,957,726.18x = 55,141,662.12 × 21,623,011.68 - Step 4: Simplify right side
39,957,726.18x = 1,192,328,804,075,373.50 - Step 5: Solve for x
x = 1,192,328,804,075,373.50/39,957,726.18 - Step 6: Final answer
x = 29,839,756.11
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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.