Finding the Fourth Proportional to 39,957,803.12, 55,141,768.50 and 21,623,088.80
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Solution
The fourth proportional to 39,957,803.12, 55,141,768.50 and 21,623,088.80 is: 29,839,862.65
Step by Step Solution
- Step 1: Write the proportion equation
39,957,803.12 : 55,141,768.50 = 21,623,088.80 : x - Step 2: Convert to fraction form
39,957,803.12/55,141,768.50 = 21,623,088.80/x - Step 3: Cross multiply
39,957,803.12x = 55,141,768.50 × 21,623,088.80 - Step 4: Simplify right side
39,957,803.12x = 1,192,335,356,864,542.75 - Step 5: Solve for x
x = 1,192,335,356,864,542.75/39,957,803.12 - Step 6: Final answer
x = 29,839,862.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.