Finding the Fourth Proportional to 76,746,371.40, 115,179,253.92 and 53,566,721.10
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Solution
The fourth proportional to 76,746,371.40, 115,179,253.92 and 53,566,721.10 is: 80,391,748.28
Step by Step Solution
- Step 1: Write the proportion equation
76,746,371.40 : 115,179,253.92 = 53,566,721.10 : x - Step 2: Convert to fraction form
76,746,371.40/115,179,253.92 = 53,566,721.10/x - Step 3: Cross multiply
76,746,371.40x = 115,179,253.92 × 53,566,721.10 - Step 4: Simplify right side
76,746,371.40x = 6,169,774,971,238,722 - Step 5: Solve for x
x = 6,169,774,971,238,722/76,746,371.40 - Step 6: Final answer
x = 80,391,748.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.