Finding the Fourth Proportional to 86,159,483.17, 128,567,230.61 and 76,873,622.11
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Solution
The fourth proportional to 86,159,483.17, 128,567,230.61 and 76,873,622.11 is: 114,710,863.37
Step by Step Solution
- Step 1: Write the proportion equation
86,159,483.17 : 128,567,230.61 = 76,873,622.11 : x - Step 2: Convert to fraction form
86,159,483.17/128,567,230.61 = 76,873,622.11/x - Step 3: Cross multiply
86,159,483.17x = 128,567,230.61 × 76,873,622.11 - Step 4: Simplify right side
86,159,483.17x = 9,883,428,702,091,800 - Step 5: Solve for x
x = 9,883,428,702,091,800/86,159,483.17 - Step 6: Final answer
x = 114,710,863.37
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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.