Finding the Fourth Proportional to 79,809,789.84, 110,128,150.98 and 45,000,405.96
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Solution
The fourth proportional to 79,809,789.84, 110,128,150.98 and 45,000,405.96 is: 62,095,283.19
Step by Step Solution
- Step 1: Write the proportion equation
79,809,789.84 : 110,128,150.98 = 45,000,405.96 : x - Step 2: Convert to fraction form
79,809,789.84/110,128,150.98 = 45,000,405.96/x - Step 3: Cross multiply
79,809,789.84x = 110,128,150.98 × 45,000,405.96 - Step 4: Simplify right side
79,809,789.84x = 4,955,811,501,724,172 - Step 5: Solve for x
x = 4,955,811,501,724,172/79,809,789.84 - Step 6: Final answer
x = 62,095,283.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.