Finding the Fourth Proportional to 71,668,607.94, 106,979,703.90 and 61,498,820.13
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Solution
The fourth proportional to 71,668,607.94, 106,979,703.90 and 61,498,820.13 is: 91,799,265.49
Step by Step Solution
- Step 1: Write the proportion equation
71,668,607.94 : 106,979,703.90 = 61,498,820.13 : x - Step 2: Convert to fraction form
71,668,607.94/106,979,703.90 = 61,498,820.13/x - Step 3: Cross multiply
71,668,607.94x = 106,979,703.90 × 61,498,820.13 - Step 4: Simplify right side
71,668,607.94x = 6,579,125,567,706,760 - Step 5: Solve for x
x = 6,579,125,567,706,760/71,668,607.94 - Step 6: Final answer
x = 91,799,265.49
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.