Finding the Fourth Proportional to 76,746,359.78, 115,179,236.61 and 53,566,709.54
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Solution
The fourth proportional to 76,746,359.78, 115,179,236.61 and 53,566,709.54 is: 80,391,731.02
Step by Step Solution
- Step 1: Write the proportion equation
76,746,359.78 : 115,179,236.61 = 53,566,709.54 : x - Step 2: Convert to fraction form
76,746,359.78/115,179,236.61 = 53,566,709.54/x - Step 3: Cross multiply
76,746,359.78x = 115,179,236.61 × 53,566,709.54 - Step 4: Simplify right side
76,746,359.78x = 6,169,772,712,526,804 - Step 5: Solve for x
x = 6,169,772,712,526,804/76,746,359.78 - Step 6: Final answer
x = 80,391,731.02
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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.